SherbyNet - /page/wikibook/entry.mu

Micron Document

<!DOCTYPE html>

<title>Bootloader unlocking</title>

</head>

Bootloader unlocking

</h1>

</header>

Bootloader unlocking is the process of disabling the <a href="Bootloader" title="Bootloader">bootloader</a> security that enforces <a href="Secure_boot" class="mw-redirect" title="Secure boot">secure boot</a> during the boot procedure. It can allow advanced customizations, such as installing <a href="Custom_firmware" title="Custom firmware">custom firmware</a>. On <a href="Smartphones" class="mw-redirect" title="Smartphones">smartphones</a>, this can be a custom Android distribution or another mobile <a href="Operating_system" title="Operating system">operating system</a>.

Some bootloaders are not locked at all and some are locked, but can be unlocked with a command, a setting or with assistance from the manufacturer. Some do not include an unlocking method and can only be unlocked through a <a href="Software_exploit" class="mw-redirect" title="Software exploit">software exploit</a>.

Bootloader unlocking is also done for <a href="Mobile_forensics" class="mw-redirect" title="Mobile forensics">mobile forensics</a> purposes, to extract digital evidence from mobile devices, using tools such as <a href="Cellebrite_UFED" title="Cellebrite UFED">Cellebrite UFED</a>.

<div class="mw-heading mw-heading2"><h2 id="Background">Background</h2></div>

Unlocking the bootloader allows installing and running unsigned code on a device, including user customized software. Operating outside the manufacturer specification might usually result in voiding any <a href="Warranties" class="mw-redirect" title="Warranties">warranties</a> and may make the device susceptible to <a href="Data_theft" title="Data theft">data theft</a>, as the integrity of the operating system (as intended by the manufacturer) can no longer be guaranteed.<a href="#cite_note-1">[1]</a> On Chromebooks, enabling developer mode makes the system less secure than a standard laptop running Linux.<a href="#cite_note-2">[2]</a> Unlocking the bootloader may require reinitialization, formatting to factory settings, or otherwise lead to data loss on Android and <a href="ChromeOS" title="ChromeOS">ChromeOS</a> devices. This is due to the fact that some user data is impossible to back up without root permission. This will also lead to certain security apps not working, such as <a href="Samsung_Knox" title="Samsung Knox">Samsung Knox</a> for which the counter would be stuck at "0x1."

Sascha Segan from <a href="PCMag" title="PCMag">PCMag</a> considered a locked bootloader a mistake on the Qualcomm Snapdragon Insiders phone, which is targeted at advanced users.<a href="#cite_note-3">[3]</a>

<div class="mw-heading mw-heading2"><h2 id="Platforms">Platforms</h2></div>

<div class="mw-heading mw-heading3"><h3 id="Android"><a href="Android_16" title="Android 16">Android</a></h3></div>

Unlocking the bootloader is typically a prerequisite of <a href="Rooting_(Android)" title="Rooting (Android)">obtaining root access</a> and/or installing a <a href="Custom_firmware#Android" title="Custom firmware">custom ROM</a>.

<caption>Android bootloader unlocking as of 2025

</caption>

<th>Manufacturer</th>

<th>Difficulty level</th>

<th>Method

</th></tr>

<tr>

<td><a href="Google_Pixel" title="Google Pixel">Google</a></td>

<td>Easy (non-Verizon) Medium<a href="#cite_note-4">[4]</a> (Verizon)</td>

<td>Command-line (unlocked variant, not restricted to carrier, and non-Verizon carrier variants when paid off fully)

</td></tr>

<tr>

<td><a href="Samsung_Galaxy" title="Samsung Galaxy">Samsung</a></td>

<td>Unavailable<a href="#cite_note-5">[5]</a>

</td>

<td>Enable option that allows OEM unlock (if it exists) in Development settings, then unlock bootloader in Download mode.

<a href="Samsung_Knox" title="Samsung Knox">Samsung Knox</a> (on supported<a href="#cite_note-6">[6]</a> devices) will be permanently tripped if modified or custom firmware is flashed, so <a href="Samsung_Wallet" title="Samsung Wallet">Samsung Wallet</a>, Secure Folder and applications made use of the Knox framework will be permanently unusable even if the bootloader is re-locked.

From One UI 8.0, Samsung has removed the ability to unlock the bootloader in all regions.<a href="#cite_note-7">[7]</a><a href="#cite_note-8">[8]</a>

</td></tr>

<tr>

<td><a href="OnePlus" title="OnePlus">OnePlus</a></td>

<td>Easy (non-<a href="T-Mobile_US" title="T-Mobile US">T-Mobile</a>) Medium (<a href="T-Mobile_US" title="T-Mobile US">T-Mobile</a>)</td>

<td>Command-line, except on T-Mobile US variants where an unlock code is needed

</td></tr>

<tr>

<td><a href="Xiaomi" title="Xiaomi">Xiaomi</a></td>

<td>Hard (MIUI powered devices) Very Hard (non-Chinese HyperOS powered devices) Unavailable (China Mainland)

</td>

<td>Requires a 3-7 day old Mi account (limited to one device per month and three devices per year).

On devices with <a href="Xiaomi_HyperOS" title="Xiaomi HyperOS">Xiaomi HyperOS</a> outside mainland China, you need to request bootloader unlock permissions in the Xiaomi Community app before proceeding with bootloader unlocking. Requires a 1-month-old Xiaomi account.

For Mainland China devices with HyperOS, bootloader unlock has not been available since February 2025.

</td></tr>

<tr>

<td>Unavailable</td>

<td>Unavailable since August 2023, when first-party apps were removed and servers were shut down.

</td></tr>

<tr>

<td>Medium</td>

<td>Command-line, request code at Sony website

</td></tr>

<tr>

<td><a href="Fairphone" title="Fairphone">Fairphone</a></td>

<td>Medium</td>

<td>Command-line, request code at Fairphone website or forum

</td></tr>

<tr>

<td><a href="Motorola" title="Motorola">Motorola</a></td>

<td>Varies widely between model and SoC manufacturer<a href="#cite_note-9">[9]</a>

Unavailable (Verizon, AT&T, Tracfone)

</td>

<td>Command-line, request code at Motorola website

</td></tr>

<tr>

<td><a href="Realme" title="Realme">Realme</a></td>

<td>Medium-Hard (China Mainland and India) Unavailable (global)</td>

<td>Command-line, after installation of the in-depth test app and submitting an application for in-depth testing.

</td></tr>

<tr>

<td><a href="Nothing_(company)" title="Nothing (company)">Nothing</a></td>

<td>Command-line

</td></tr>

<tr>

<td><a href="Huawei" title="Huawei">Huawei</a></td>

<td>Medium-Hard (Kirin SoCs, select Huawei phones)

Unavailable (others)

</td>

<td>Select Huawei phones using the Kirin SoC can have their bootloader unlocked via potatonv: <a rel="nofollow" class="external free" href="https://www.xda-developers.com/huawei-honor-bootloader-unlock-potatonv/">https://www.xda-developers.com/huawei-honor-bootloader-unlock-potatonv/</a>

For other devices, bootloader unlock has not been available since July 2018.

</td></tr>

<tr>

<td>Easy (<a href="MediaTek" title="MediaTek">MediaTek</a>) or phones that bought in mainland China<a href="#cite_note-10">[10]</a> Medium (Snapdragon).

</td>

<td>Only certain Snapdragon-powered OPPO phones can be unlocked<a href="#cite_note-11">[11]</a> without a third-party paid tool such as UnlockTool. Unlocking is possible on some MediaTek SoCs via MTKClient. Note that certain fastboot binaries have been removed, or locked by RSA key.

MediaTek: MTKClient, which sometimes requires using MTK bypass utility beforehand.

Any phones bought from mainland China and in depth-test's device support lists: Depth test regardless of SoC (the depth test app can be downloaded from Oppo's website). Command line using adb and fastboot.

</td></tr>

<tr>

<td><a href="HMD_Global" title="HMD Global">HMD</a>-<a href="Nokia" title="Nokia">Nokia</a></td>

<td>Unavailable</td>

<td>N/A

</td></tr>

<tr>

</td>

<td>Unavailable as of May 2022.<a href="#cite_note-12">[12]</a>

</td>

<td>N/A

</td></tr>

<tr>

<td>Possible<a href="#cite_note-13">[13]</a> by flashing bootloaders with QFIL utility.

</td></tr>

<tr>

<td><a href="Tecno_Mobile" title="Tecno Mobile">Tecno</a></td>

<td>Medium</td>

<td>Command-line. Requires Tecno ID account at least two weeks old.

</td></tr>

<tr>

<td><a href="Infinix" class="mw-redirect" title="Infinix">Infinix</a></td>

<td>Medium</td>

<td>Command-line. Requires Inifinix ID account at least two weeks old.

</td></tr>

<tr>

<td>Medium</td>

<td>Command-line. Requires Itel ID account at least two weeks old.

</td></tr>

<tr>

<td>Medium (Ion V only)

Unknown (others)

</td>

<td>For the Ion V mobile phone, you can use a Python tool to reboot to a normally hidden fastboot.

</td></tr>

<tr>

<td><a href="Amazon_(company)" title="Amazon (company)">Amazon</a>

</td>

<td>Medium

</td>

<td>Command-line and unofficial. Requires using Linux to <a href="Brick_(electronics)" title="Brick (electronics)">brick</a> the device temporarily.<a href="#cite_note-14">[14]</a>

</td></tr></tbody></table>

<div class="mw-heading mw-heading4"><h4 id="History">History</h4></div>

The bootloaders of <a href="Google_Nexus" title="Google Nexus">Nexus</a> and <a href="Google_Pixel" title="Google Pixel">Pixel</a> devices can be unlocked with <a href="Fastboot" title="Fastboot">fastboot</a>.<a href="#cite_note-15">[15]</a>

When <a href="Motorola" title="Motorola">Motorola</a> released a bootloader unlocking tool for the Droid Razr, <a href="Verizon" title="Verizon">Verizon</a> removed the tool from their models.<a href="#cite_note-16">[16]</a>

In 2011, <a href="Sony_Ericsson" class="mw-redirect" title="Sony Ericsson">Sony Ericsson</a> released an online bootloader unlocking tool.<a href="#cite_note-17">[17]</a> Sony requires the <a href="IMEI" class="mw-redirect" title="IMEI">IMEI</a> number to be filled in on their website.<a href="#cite_note-18">[18]</a> For the Asus Transformer Prime TF201, Asus has released a special bootloader unlock tool.<a href="#cite_note-19">[19]</a>

In 2012, Motorola released a limited tool for unlocking bootloaders.<a href="#cite_note-20">[20]</a> They require accepting terms and conditions and creating an account before the bootloader can be unlocked for your Motorola device.<a href="#cite_note-21">[21]</a>

A 2012 article by <a href="The_Verge" title="The Verge">The Verge</a> called the unlockable bootloaders a 'broken promise' and called for a fix.<a href="#cite_note-22">[22]</a>

HTC phones have an additional layer of lock called "S-OFF/S-ON".

Bootloaders can be unlocked using an exploit or using a way that the vendor supplied. The latter method usually requires wiping all data on the device.<a href="#cite_note-:0-23">[23]</a> In addition, some manufacturers prohibit unlocking on carrier locked phones. Although Samsung phones and cellular tablets sold in the US and Canada do not allow bootloader unlocks regardless of carrier status, a service has allowed users on an earlier version to unlock their US/Canadian Samsung phone(s) and/or tablet(s)<a href="#cite_note-24">[24]</a><a href="#cite_note-25">[25]</a>

In 2018, a developer from <a href="XDA_Developers" class="mw-redirect" title="XDA Developers">XDA Developers</a> launched a service which allowed users to unlock the bootloader of some Nokia smartphone models.<a href="#cite_note-26">[26]</a> Similarly, another developer from <a href="XDA_Developers" class="mw-redirect" title="XDA Developers">XDA Developers</a> launched a service to allow users to unlock the bootloaders of <a href="Samsung_Galaxy_S20" title="Samsung Galaxy S20">Samsung Galaxy S20</a> and <a href="Samsung_Galaxy_S21" title="Samsung Galaxy S21">Samsung Galaxy S21</a> Phones.

<a href="Huawei" title="Huawei">Huawei</a> announced plans to allow users to unlock the bootloader of the Mate 30 series, but later retracted that.<a href="#cite_note-27">[27]</a> Huawei has stopped providing bootloader unlock codes since 2018.<a href="#cite_note-28">[28]</a> A bootloader exploit named checkm30 has been developed for <a href="HiSilicon" title="HiSilicon">HiSilicon</a> based Huawei phones.<a href="#cite_note-29">[29]</a>

When the bootloader of the <a href="Samsung_Galaxy_Z_Fold_3" title="Samsung Galaxy Z Fold 3">Samsung Galaxy Z Fold 3</a> was unlocked, the camera became less functional. This could be restored by re-locking the bootloader.<a href="#cite_note-30">[30]</a> This issue was later fixed by Samsung.<a href="#cite_note-31">[31]</a> For the <a href="Samsung_Galaxy_S22" title="Samsung Galaxy S22">Samsung Galaxy S22</a> series, unlocking the bootloader has no effect on the camera.<a href="#cite_note-32">[32]</a>

<div class="mw-heading mw-heading3"><h3 id="Others">Others</h3></div>

<div class="mw-heading mw-heading4"><h4 id="Microsoft">Microsoft</h4></div>

The WPInternals tool is able to unlock bootloaders of all <a href="Microsoft_Lumia" class="mw-redirect" title="Microsoft Lumia">Nokia Lumia</a> phones running <a href="Windows_Phone" title="Windows Phone">Windows Phone</a>, but not phones like the <a href="Alcatel_Idol_4" title="Alcatel Idol 4">Alcatel Idol 4</a> or <a href="HP_Elite_x3" title="HP Elite x3">HP Elite x3</a>.<a href="#cite_note-33">[33]</a><a href="#cite_note-34">[34]</a> Version 1.0 was released in November 2015.<a href="#cite_note-35">[35]</a> In October 2018, the tool was released as open source software when the main developer René Lergner (also known as HeathCliff74) stepped down.<a href="#cite_note-36">[36]</a>

The slab bootloader used by <a href="Windows_RT" title="Windows RT">Windows RT</a> could be unlocked using a vulnerability, but was silently patched by Microsoft in 2016.<a href="#cite_note-37">[37]</a> UEFI Secure Boot on x86 systems can generally be unlocked.

<div class="mw-heading mw-heading4"><h4 id="Apple">Apple</h4></div>

The <a href="Boot_ROM" title="Boot ROM">boot ROM</a> protection on iOS devices with an <a href="Apple_A11" title="Apple A11">A11</a> processor or older can be bypassed with a hardware exploit known as checkm8, which makes it possible to run other operating systems including Linux.<a href="#cite_note-38">[38]</a>

The bootloader on <a href="Apple_Silicon" class="mw-redirect" title="Apple Silicon">Apple Silicon</a>-based Macs can be unlocked.<a href="#cite_note-39">[39]</a> However, other Apple devices like the <a href="IPhone" title="IPhone">iPhone</a> and <a href="IPad" title="IPad">iPad</a> cannot be bootloader unlocked even when using the same chip used in a Mac.

<div class="mw-heading mw-heading4"><h4 id="Google">Google</h4></div>

The equivalent of bootloader unlocking is called developer mode in <a href="Chromebook" title="Chromebook">Chromebooks</a>.<a href="#cite_note-40">[40]</a> Chromebooks use custom bootloaders that can be modified or overwritten by removing a Write-protect screw.<a href="#cite_note-41">[41]</a> Some models lack a screw and instead may or may not require disabling the onboard Cr50 chip.<a rel="nofollow" class="external autonumber" href="https://wiki.mrchromebox.tech/Firmware_Write_Protect">[1]</a>

In 2013, the bootloader of the <a href="Chromecast" title="Chromecast">Chromecast</a> was hacked using an exploit.<a href="#cite_note-42">[42]</a> In 2021, it was hacked again for newer versions.<a href="#cite_note-43">[43]</a> In 2023, it was reported that the Chromecast HD could be unlocked without exploit.<a href="#cite_note-44">[44]</a>

<a href="Asus" title="Asus">Asus</a> used to provide an Unlocking tool for both of their smartphone lines, the <a href="Zenfone" class="mw-redirect" title="Zenfone">Zenfone</a> and <a href="ROG_Phone" title="ROG Phone">ROG Phone</a>. This worked as an installable .apk file that the user could install on their phone, then unlock the bootloader. The app worked by contacting Asus unlocking servers, then prompting the user to perform a factory reset.

In 2023 Asus removed the tool from their website and closed the unlocking servers, so even phones with the .apk file installed couldn't unlock their bootloaders. Representatives on the Asus forums claimed the tool would be available again, but as of March 2024 no additional information has been provided, even after the release of their latest device the <a href="ROG_Phone_8" title="ROG Phone 8">ROG Phone 8</a> and the upcoming release of the Zenfone 11 Ultra.

A user on the popular forum <a href="XDA_Developers" class="mw-redirect" title="XDA Developers">XDA (website)</a> filed a court claim application against Asus due to the unlock tool never being released and alleged that Asus censored comments about the unlock tool on their forum.<a href="#cite_note-45">[45]</a>

<div class="mw-heading mw-heading4"><h4 id="SpaceX">SpaceX</h4></div>

In August 2022, security researcher Lennert Wouters applied a voltage injection attack to bypass firmware verification of a <a href="Starlink" title="Starlink">Starlink</a> satellite dish from <a href="SpaceX" title="SpaceX">SpaceX</a>.<a href="#cite_note-46">[46]</a>

<div class="mw-heading mw-heading2"><h2 id="Relocking">Relocking</h2></div>

After unlocking a bootloader, some devices allow users to relock it. Relocking is typically done to restore the device to a factory-like state, often for warranty purposes or to re-enable certain security features like verified boot. This process is usually carried out through fastboot commands or manufacturer-specific software.

However, the ability to relock a bootloader varies significantly across manufacturers and device models. Some manufacturers provide official methods to relock the bootloader without issue, especially if the device is running official, signed firmware. In contrast, other devices may experience functionality issues after relocking—such as the loss of access to certain features or the risk of a "soft brick"—particularly if any system modifications remain or if unofficial firmware is installed.

Importantly, relocking the bootloader does not always reverse all changes made during the unlocking process. For example, some devices will retain a bootloader unlock flag or record in the hardware's tamper logs, which may still void warranties or affect access to services like DRM-protected content.

As a result, users are advised to consult manufacturer-specific guidelines and ensure that all system components are restored to their official state before attempting to relock the bootloader.<a href="#cite_note-47">[47]</a>

<div class="mw-heading mw-heading2"><h2 id="VNeID_app_changes">VNeID app changes</h2></div>

According to information from technology groups in Vietnam, after updating version 2.1.6 of the <a href="VNeID" title="VNeID">VNeID</a> application released on May 30, 2024, some Android phone users have received warnings : "Your device is not safe, there is a risk of containing malicious code...". As a result, users are thrown to the main screen and cannot use the VNeID application, even though before the update they could still log in and use it normally.

This is because VNeID 2.1.6 update has added new security measures to stop working on Android devices with root access, unlocked bootloader and developer mode enabled. To use, users must disable root access to the device, relock bootloader and turn off developer options.

<div class="mw-heading mw-heading2"><h2 id="Shutdown_of_online_services">Shutdown of online services</h2></div>

In 2018, Huawei stopped providing bootloader unlock codes.<a href="#cite_note-48">[48]</a> On 31 December 2021, LG shut down their website which provided bootloader unlock codes.<a href="#cite_note-49">[49]</a> In August 2023, <a href="ASUS" class="mw-redirect" title="ASUS">ASUS</a> removed the unlocking tool from their website and shut down the servers used to unlock the bootloader.<a href="#cite_note-50">[50]</a>

<ul><li><a href="Booting_process_of_Android_devices" title="Booting process of Android devices">Booting process of Android devices</a></li>

<li><a href="Boot_ROM#Security" title="Boot ROM">Boot ROM § Security</a></li></ul>

<div class="mw-heading mw-heading2"><h2 id="References">References</h2></div>

/* start https://en.wikipedia.org/ */

.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}

/* end https://en.wikipedia.org/ */

</style><div class="reflist">

/* start https://en.wikipedia.org/ */

.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("./mw/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("./mw/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("./mw/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("./mw/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}

/* end https://en.wikipedia.org/ */

</style><cite id="CITEREFTammaDonnie_Tindall2015" class="citation book cs1">Tamma, Rohit; Donnie Tindall (2015). Learning Android forensics: a hands-on guide to Android forensics, from setting up the forensic workstation to analyzing key forensic artifacts. Birmingham, UK. <a href="ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <bdi>978-1-78217-444-8</bdi>. <a href="OCLC_(identifier)" class="mw-redirect" title="OCLC (identifier)">OCLC</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/oclc/910639389">910639389</a>.</cite><code class="cs1-code">{{cite book}}</code>: CS1 maint: location missing publisher (link)

</li>

<li id="cite_note-2"><a href="#cite_ref-2">^</a> <cite id="CITEREFPorup2017" class="citation web cs1">Porup, J. M. (2017-06-19). <a rel="nofollow" class="external text" href="https://arstechnica.com/gadgets/2017/06/how-to-install-linux-on-a-chromebook/">"How to install Linux on a Chromebook (and why you should)"</a>. <a href="Ars_Technica" title="Ars Technica">Ars Technica</a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20170619130103/https://arstechnica.com/gadgets/2017/06/how-to-install-linux-on-a-chromebook/">Archived</a> from the original on 2017-06-19. Retrieved 2021-09-06.</cite>

</li>

<li id="cite_note-3"><a href="#cite_ref-3">^</a> <cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.pcmag.com/reviews/qualcomm-smartphone-for-snapdragon-insiders">"Qualcomm Smartphone for Snapdragon Insiders Review"</a>. <a href="PCMag" title="PCMag">PCMag</a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20210816140636/https://www.pcmag.com/reviews/qualcomm-smartphone-for-snapdragon-insiders">Archived</a> from the original on 2021-08-16. Retrieved 2021-09-06.</cite>

</li>

<li id="cite_note-4"><a href="#cite_ref-4">^</a> <a rel="nofollow" class="external free" href="https://joshspicer.com/root-pixel-1">https://joshspicer.com/root-pixel-1</a>

</li>

<li id="cite_note-5"><a href="#cite_ref-5">^</a> <cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://xdaforums.com/t/bootloader-unlocking-option-removed-from-one-ui-8-0.4751904/">"Bootloader unlocking option removed from One UI 8.0"</a>. XDA Forums. 2025-07-26. Retrieved 2025-07-27.</cite>

</li>

<li id="cite_note-6"><a href="#cite_ref-6">^</a> <cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.samsungknox.com/en/knox-platform/supported-devices">"Device Compatibility Knox Solutions | Samsung Knox"</a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20241207152737/https://www.samsungknox.com/en/knox-platform/supported-devices">Archived</a> from the original on 2024-12-07. Retrieved 2024-12-05.</cite>

</li>

<li id="cite_note-7"><a href="#cite_ref-7">^</a> <cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://xdaforums.com/t/bootloader-unlocking-option-removed-from-one-ui-8-0.4751904/">"Bootloader unlocking option removed from One UI 8.0"</a>. XDA Forums. 2025-07-26. Retrieved 2025-07-27.</cite>

</li>

<li id="cite_note-8"><a href="#cite_ref-8">^</a> <cite id="CITEREFLeon2025" class="citation web cs1">Leon, Jean (2025-07-26). <a rel="nofollow" class="external text" href="https://www.androidheadlines.com/2025/07/samsung-one-ui-8-prevents-unlocking-bootloader-galaxy-phone.html">"One UI 8 Could Be Killing Part of the Core Essence of Android"</a>. Android Headlines. Retrieved 2025-07-27.</cite>

</li>

<li id="cite_note-9"><a href="#cite_ref-9">^</a> <cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://xdaforums.com/t/guide-un-locking-motorola-bootloader.4079111/">"[Guide]Un/locking Motorola Bootloader"</a>. XDA Forums. 2020-04-08. Retrieved 2025-06-12.</cite>

</li>

<li id="cite_note-10"><a href="#cite_ref-10">^</a> <cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.oppo.cn/thread-397164526-1">"帖子详情 - Oppo社区"</a>.</cite>

</li>

<li id="cite_note-11"><a href="#cite_ref-11">^</a> <cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://drive.proton.me/urls/33N5W4XGHW#tdsu-ADk9YyA">"Proton Drive"</a>.</cite>

</li>

<li id="cite_note-12"><a href="#cite_ref-12">^</a> <cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.vivo.com/in/support/questionList?categoryId=10047&FAQId=10204">"vivo Smartphone FAQs | vivo India"</a>. www.vivo.com. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20221129234638/https://www.vivo.com/in/support/questionList?categoryId=10047&FAQId=10204">Archived</a> from the original on 2022-11-29. Retrieved 2022-11-29.</cite>

</li>

<li id="cite_note-13"><a href="#cite_ref-13">^</a> <cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://xdaforums.com/t/v60-bootloader-unlock-and-magisk-root.4358785/">"V60 Bootloader Unlock and Magisk Root"</a>. XDA Forums. Retrieved 24 July 2025.</cite>

</li>

<li id="cite_note-14"><a href="#cite_ref-14">^</a> <cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://xdaforums.com/t/unlock-root-twrp-unbrick-fire-hd-10-2017-suez.3913639/">"[UNLOCK][ROOT][TWRP][UNBRICK] Fire HD 10 2017 (suez)"</a>. XDA Forums. 2019-03-21. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20250409172641/https://xdaforums.com/t/unlock-root-twrp-unbrick-fire-hd-10-2017-suez.3913639/">Archived</a> from the original on 2025-04-09. Retrieved 2025-04-19.</cite>

</li>

<li id="cite_note-15"><a href="#cite_ref-15">^</a> <cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://developers.google.com/android/images">"Factory Images for Nexus and Pixel Devices | Google Play services"</a>. Google Developers. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20170404151606/https://developers.google.com/android/images">Archived</a> from the original on 2017-04-04. Retrieved 2022-11-07.</cite>

</li>

<li id="cite_note-16"><a href="#cite_ref-16">^</a> <cite id="CITEREFIngraham2011" class="citation web cs1">Ingraham, Nathan (2011-10-24). <a rel="nofollow" class="external text" href="https://www.theverge.com/android/2011/10/24/2511339/droid-razr-att-verizon-fcc">"GSM Motorola RAZR hits the FCC; Verizon model has locked bootloader"</a>. <a href="The_Verge" title="The Verge">The Verge</a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20221001041223/https://www.theverge.com/android/2011/10/24/2511339/droid-razr-att-verizon-fcc">Archived</a> from the original on 2022-10-01. Retrieved 2022-06-14.</cite>

</li>

<li id="cite_note-17"><a href="#cite_ref-17">^</a> <cite id="CITEREFBy2011" class="citation web cs1">By (2011-04-14). <a rel="nofollow" class="external text" href="https://hackaday.com/2011/04/14/sony-ericsson-android-bootloader-unlockin/">"Sony Ericsson Promotes Android Bootloader Unlocking"</a>. <a href="Hackaday" title="Hackaday">Hackaday</a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20220528005845/https://hackaday.com/2011/04/14/sony-ericsson-android-bootloader-unlockin/">Archived</a> from the original on 2022-05-28. Retrieved 2022-06-14.</cite>

</li>

<li id="cite_note-18"><a href="#cite_ref-18">^</a> <cite id="CITEREFKotipalliMohammed_A._Imran2016" class="citation book cs1">Kotipalli, Srinivasa Rao; Mohammed A. Imran (2016). Hacking Android: explore every nook and cranny of the Android OS to modify your device and guard it against security threats. Birmingham, UK. <a href="ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <bdi>978-1-78588-800-7</bdi>. <a href="OCLC_(identifier)" class="mw-redirect" title="OCLC (identifier)">OCLC</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/oclc/957298786">957298786</a>.</cite><code class="cs1-code">{{cite book}}</code>: CS1 maint: location missing publisher (link)

</li>

<li id="cite_note-19"><a href="#cite_ref-19">^</a> <cite id="CITEREFTiefenthäler2012" class="citation web cs1 cs1-prop-foreign-lang-source">Tiefenthäler, Ronald (22 February 2012). <a rel="nofollow" class="external text" href="https://www.notebookcheck.com/Asus-Bootloader-Unlock-Tool-fuer-Tablet-Transformer-Prime-TF201-verfuegbar.70597.0.html">"Asus: Bootloader Unlock Tool für Tablet Transformer Prime TF201 verfügbar"</a>. Notebookcheck (in German). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20210804122759/https://www.notebookcheck.com/Asus-Bootloader-Unlock-Tool-fuer-Tablet-Transformer-Prime-TF201-verfuegbar.70597.0.html">Archived</a> from the original on 2021-08-04. Retrieved 2021-08-04.</cite>

</li>

<li id="cite_note-20"><a href="#cite_ref-20">^</a> <cite id="CITEREFRodgers2012" class="citation web cs1">Rodgers, Evan (2012-08-17). <a rel="nofollow" class="external text" href="https://www.theverge.com/2012/8/17/3250448/motorola-bootloader-unlock-website">"Motorola unveils Android bootloader unlocking tool with limited device support"</a>. <a href="The_Verge" title="The Verge">The Verge</a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20120819012621/http://www.theverge.com:80/2012/8/17/3250448/motorola-bootloader-unlock-website">Archived</a> from the original on 2012-08-19. Retrieved 2021-09-10.</cite>

</li>

<li id="cite_note-21"><a href="#cite_ref-21">^</a> <cite id="CITEREFViscomiAndy_DaviesMarcel_Duran2015" class="citation book cs1">Viscomi, Rick; Andy Davies; Marcel Duran (2015). Using WebPageTest: web performance testing for novices and power users. Sebastopol, CA. <a href="ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <bdi>978-1-4919-0281-3</bdi>. <a href="OCLC_(identifier)" class="mw-redirect" title="OCLC (identifier)">OCLC</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/oclc/927108295">927108295</a>.</cite><code class="cs1-code">{{cite book}}</code>: CS1 maint: location missing publisher (link)

</li>

<li id="cite_note-22"><a href="#cite_ref-22">^</a> <cite id="CITEREFKopfstein2012" class="citation web cs1">Kopfstein, Janus (2012-11-20). <a rel="nofollow" class="external text" href="https://www.theverge.com/2012/11/20/3666668/access-denied-android-unlocked-bootloaders">"Access Denied: why Android's broken promise of unlocked bootloaders needs to be fixed"</a>. The Verge. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20170210040817/http://www.theverge.com/2012/11/20/3666668/access-denied-android-unlocked-bootloaders">Archived</a> from the original on 2017-02-10. Retrieved 2024-11-22.</cite>

</li>

<li id="cite_note-:0-23"><a href="#cite_ref-:0_23-0">^</a> <cite id="CITEREFAfonin2016" class="citation book cs1">Afonin, Oleg (2016). Mobile Forensics ' Advanced Investigative Strategies (1 ed.). Packt Publishing. <a href="ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <bdi>978-1-78646-408-8</bdi>. <a href="OCLC_(identifier)" class="mw-redirect" title="OCLC (identifier)">OCLC</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/oclc/960040717">960040717</a>.</cite>

</li>

<li id="cite_note-24"><a href="#cite_ref-24">^</a> <cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://t.me/s/Afaneh92UnlockChannel">"USA/Canada - Samsung Bootloader Unlock"</a>. Telegram. Retrieved 2024-06-18.</cite>

</li>

<li id="cite_note-25"><a href="#cite_ref-25">^</a> <cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://xdaforums.com/t/closed-android-unsamlock-bootloader-unlock-for-samsung-us-canada-devices.4215101/">"[CLOSED][Android][UNSAMLOCK] Bootloader Unlock for Samsung US/Canada Devices"</a>. XDA Forums. 2021-01-08. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20240627225638/https://xdaforums.com/t/closed-android-unsamlock-bootloader-unlock-for-samsung-us-canada-devices.4215101/">Archived</a> from the original on 2024-06-27. Retrieved 2024-06-18.</cite>

</li>

<li id="cite_note-26"><a href="#cite_ref-26">^</a> <cite id="CITEREFRox2018" class="citation web cs1">Rox, Ricci (2 April 2018). <a rel="nofollow" class="external text" href="https://www.notebookcheck.net/Nokia-users-can-now-unofficially-unlock-their-bootloaders-but-the-methodology-is-as-sketchy-as-it-gets.293912.0.html">"Nokia users can now unofficially unlock their bootloaders but the methodology is as sketchy as it gets"</a>. Notebookcheck. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20210906122436/https://www.notebookcheck.net/Nokia-users-can-now-unofficially-unlock-their-bootloaders-but-the-methodology-is-as-sketchy-as-it-gets.293912.0.html">Archived</a> from the original on 2021-09-06. Retrieved 2021-09-06.</cite>

</li>

<li id="cite_note-27"><a href="#cite_ref-27">^</a> <cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://indianexpress.com/article/technology/mobile-tabs/no-huawei-mate-30-will-not-have-an-unlocked-bootloader-6025448/">"Huawei Mate 30 will not have an unlocked bootloader"</a>. <a href="The_Indian_Express" title="The Indian Express">The Indian Express</a>. 2019-09-25. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20190926231222/https://indianexpress.com/article/technology/mobile-tabs/no-huawei-mate-30-will-not-have-an-unlocked-bootloader-6025448/">Archived</a> from the original on 2019-09-26. Retrieved 2021-09-06.</cite>

</li>

<li id="cite_note-28"><a href="#cite_ref-28">^</a> <cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://9to5google.com/2018/05/24/huawei-bootloader-unlock-stop/">"Huawei will no longer offer bootloader unlock codes for its Android devices"</a>. <a href="9to5Google" class="mw-redirect" title="9to5Google">9to5Google</a>. 2018-05-24. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20210906122958/https://9to5google.com/2018/05/24/huawei-bootloader-unlock-stop/">Archived</a> from the original on 2021-09-06. Retrieved 2021-09-06.</cite>

</li>

<li id="cite_note-29"><a href="#cite_ref-29">^</a> <cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://raw.githubusercontent.com/hhj4ck/checkm30/master/checkm30.pdf">"Checkmate Mate 30 - Attack the bootrom of Huawei smartphones"</a> (PDF). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20210906123552/https://raw.githubusercontent.com/hhj4ck/checkm30/master/checkm30.pdf">Archived</a> (PDF) from the original on 2021-09-06.</cite>

</li>

<li id="cite_note-30"><a href="#cite_ref-30">^</a> <cite id="CITEREFClark2021" class="citation web cs1">Clark, Mitchell (2021-08-24). <a rel="nofollow" class="external text" href="https://www.theverge.com/2021/8/24/22639869/samsung-galaxy-z-fold-3-camera-disable-bootloader-unlock">"Samsung will let you unlock your Z Fold 3's bootloader, but at the cost of your cameras"</a>. <a href="The_Verge" title="The Verge">The Verge</a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20210824214019/https://www.theverge.com/2021/8/24/22639869/samsung-galaxy-z-fold-3-camera-disable-bootloader-unlock">Archived</a> from the original on 2021-08-24. Retrieved 2021-09-06.</cite>

</li>

<li id="cite_note-31"><a href="#cite_ref-31">^</a> <cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.xda-developers.com/bootloader-unlocking-no-longer-kills-galaxy-z-fold-3-cameras/">"Unlocking the bootloader no longer kills the Galaxy Z Fold 3's cameras"</a>. xda-developers. 2021-12-07. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20220213053845/https://www.xda-developers.com/bootloader-unlocking-no-longer-kills-galaxy-z-fold-3-cameras/">Archived</a> from the original on 2022-02-13. Retrieved 2022-03-14.</cite>

</li>

<li id="cite_note-32"><a href="#cite_ref-32">^</a> <cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.xda-developers.com/samsung-galaxy-s22-bootloader-unlock-camera-working/">"Unlocking the bootloader doesn't break the camera on the Samsung Galaxy S22 series"</a>. xda-developers. 2022-02-26. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20220226150139/https://www.xda-developers.com/samsung-galaxy-s22-bootloader-unlock-camera-working/">Archived</a> from the original on 2022-02-26. Retrieved 2022-02-26.</cite>

</li>

<li id="cite_note-33"><a href="#cite_ref-33">^</a> <cite class="citation web cs1 cs1-prop-foreign-lang-source"><a rel="nofollow" class="external text" href="https://tweakers.net/nieuws/132519/tool-van-nederlandse-ontwikkelaar-kan-custom-roms-op-alle-lumias-flashen.html">"Tool van Nederlandse ontwikkelaar kan custom roms op alle Lumia's flashen"</a>. <a href="Tweakers" title="Tweakers">Tweakers</a> (in Dutch). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20210804122758/https://tweakers.net/nieuws/132519/tool-van-nederlandse-ontwikkelaar-kan-custom-roms-op-alle-lumias-flashen.html">Archived</a> from the original on 2021-08-04. Retrieved 2021-08-04.</cite>

</li>

<li id="cite_note-34"><a href="#cite_ref-34">^</a> <cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.xda-developers.com/windows-phone-internals-2-2-unlocks-bootloader-windows-8-10-lumia-smartphones/">"Windows Phone Internals 2.2 Unlocks the Bootloader on all Windows 8 & 10 Lumia Smartphones"</a>. <a href="Xda-developers" class="mw-redirect" title="Xda-developers">xda-developers</a>. 2017-12-04. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20210804122800/https://www.xda-developers.com/windows-phone-internals-2-2-unlocks-bootloader-windows-8-10-lumia-smartphones/">Archived</a> from the original on 2021-08-04. Retrieved 2021-08-04.</cite>

</li>

<li id="cite_note-35"><a href="#cite_ref-35">^</a> <cite id="CITEREFAndrew_Orlowski" class="citation web cs1">Andrew Orlowski. <a rel="nofollow" class="external text" href="https://www.theregister.com/2015/11/27/rooting_and_modding_a_windows_phone_is_now_childs_play/">"Rooting and modding a Windows Phone is now child's play"</a>. <a href="The_Register" title="The Register">The Register</a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20220928160749/https://www.theregister.com/2015/11/27/rooting_and_modding_a_windows_phone_is_now_childs_play/">Archived</a> from the original on 2022-09-28. Retrieved 2022-06-14.</cite>

</li>

<li id="cite_note-36"><a href="#cite_ref-36">^</a> <cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.neowin.net/news/windows-10-mobiles-bootloader-unlocker-is-now-open-source/">"Windows 10 Mobile's bootloader unlocker is now open source"</a>. <a href="Neowin" title="Neowin">Neowin</a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20220525201424/https://www.neowin.net/news/windows-10-mobiles-bootloader-unlocker-is-now-open-source/">Archived</a> from the original on 2022-05-25. Retrieved 2022-06-14.</cite>

</li>

<li id="cite_note-37"><a href="#cite_ref-37">^</a> <cite id="CITEREFFrancisco" class="citation web cs1">Francisco, Shaun Nichols in San. <a rel="nofollow" class="external text" href="https://www.theregister.com/2016/07/15/windows_fix_closes_rt_unlock_loophole/">"Microsoft silently kills dev backdoor that boots Linux on locked-down Windows RT slabs"</a>. www.theregister.com. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20210906101905/https://www.theregister.com/2016/07/15/windows_fix_closes_rt_unlock_loophole/">Archived</a> from the original on 2021-09-06. Retrieved 2021-09-06.</cite>

</li>

<li id="cite_note-38"><a href="#cite_ref-38">^</a> <cite id="CITEREFLundberg" class="citation web cs1">Lundberg, Anders. <a rel="nofollow" class="external text" href="https://www.macworld.co.uk/news/linux-iphone-7-3800398/">"16-year-old runs Linux on iPhone 7"</a>. <a href="Macworld_UK" class="mw-redirect" title="Macworld UK">Macworld UK</a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20210804122759/https://www.macworld.co.uk/news/linux-iphone-7-3800398/">Archived</a> from the original on 2021-08-04. Retrieved 2021-08-04.</cite>

</li>

<li id="cite_note-39"><a href="#cite_ref-39">^</a> <cite id="CITEREFJanuary_20212021" class="citation web cs1">January 2021, Michelle Ehrhardt 19 (2021-01-19). <a rel="nofollow" class="external text" href="https://www.tomshardware.com/news/linux-for-apple-m1-beta">"Linux is Finally on Apple M1...Kind Of"</a>. <a href="Tom's_Hardware" title="Tom's Hardware">Tom's Hardware</a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20210804122759/https://www.tomshardware.com/news/linux-for-apple-m1-beta">Archived</a> from the original on 2021-08-04. Retrieved 2021-08-04.</cite><code class="cs1-code">{{cite web}}</code>: CS1 maint: numeric names: authors list (link)

</li>

<li id="cite_note-40"><a href="#cite_ref-40">^</a> <cite id="CITEREFDecember_20142014" class="citation web cs1">December 2014, Lucian Armasu 31 (2014-12-31). <a rel="nofollow" class="external text" href="https://www.tomshardware.com/news/linux-apps-chrome-os-window,28293.html">"You Can Now Run Full Linux Apps Inside A Chrome OS Window"</a>. <a href="Tom's_Hardware" title="Tom's Hardware">Tom's Hardware</a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20210906120723/https://www.tomshardware.com/news/linux-apps-chrome-os-window,28293.html">Archived</a> from the original on 2021-09-06. Retrieved 2021-09-06.</cite><code class="cs1-code">{{cite web}}</code>: CS1 maint: numeric names: authors list (link)

</li>

<li id="cite_note-41"><a href="#cite_ref-41">^</a> <cite id="CITEREFRobert2017" class="citation web cs1">Robert, Foss (2017-03-08). <a rel="nofollow" class="external text" href="https://www.collabora.com/news-and-blog/blog/2017/03/08/quick-hack-removing-the-chromebook-write-protect-screw/">"Quick hack: Removing the Chromebook Write-Protect screw"</a>. <a href="Collabora" title="Collabora">Collabora</a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20210904110433/https://www.collabora.com/news-and-blog/blog/2017/03/08/quick-hack-removing-the-chromebook-write-protect-screw/">Archived</a> from the original on 2021-09-04. Retrieved 2021-09-04.</cite>

</li>

<li id="cite_note-42"><a href="#cite_ref-42">^</a> <cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.engadget.com/2013-07-28-chromecast-bootloader-exploit-video-hack.html">"Chromecast bootloader exploit surfaces, opens up plenty of possibilities (video)"</a>. <a href="Engadget" title="Engadget">Engadget</a>. 28 July 2013. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20200904040725/https://www.engadget.com/2013-07-28-chromecast-bootloader-exploit-video-hack.html">Archived</a> from the original on 2020-09-04. Retrieved 2021-09-06.</cite>

</li>

<li id="cite_note-43"><a href="#cite_ref-43">^</a> <cite class="citation web cs1 cs1-prop-foreign-lang-source"><a rel="nofollow" class="external text" href="https://tweakers.net/nieuws/185136/modders-ontgrendelen-bootloader-van-google-chromecast-met-google-tv.html">"Modders ontgrendelen bootloader van Google Chromecast met Google TV"</a>. <a href="Tweakers" title="Tweakers">Tweakers</a> (in Dutch). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20210801105415/https://tweakers.net/nieuws/185136/modders-ontgrendelen-bootloader-van-google-chromecast-met-google-tv.html">Archived</a> from the original on 2021-08-01. Retrieved 2021-09-06.</cite>

</li>

<li id="cite_note-44"><a href="#cite_ref-44">^</a> <cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://9to5google.com/2022/09/23/chromecast-with-google-tv-hd-bootloader-can-be-unlocked-by-default/">"Chromecast with Google TV HD bootloader can be unlocked by default"</a>. 9to5Google.</cite>

</li>

<li id="cite_note-45"><a href="#cite_ref-45">^</a> <cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://xdaforums.com/t/court-action-against-asus-false-promise-on-bootloader-unlock-tool.4657042/">"Court Action against Asus' false promise on bootloader unlock tool"</a>. XDA Forums. 2024-02-18. Retrieved 2024-03-23.</cite>

</li>

<li id="cite_note-46"><a href="#cite_ref-46">^</a> <cite id="CITEREFHardcastle" class="citation web cs1">Hardcastle, Jessica Lyons. <a rel="nofollow" class="external text" href="https://www.theregister.com/2022/08/12/starlink_terminal_hack_black_hat/">"Starlink satellite dish cracked on stage at Black Hat"</a>. <a href="The_Register" title="The Register">The Register</a>. Retrieved 2022-11-22.</cite>

</li>

<li id="cite_note-47"><a href="#cite_ref-47">^</a> <cite id="CITEREFWilde2021" class="citation web cs1">Wilde, Damien (2021-09-09). <a rel="nofollow" class="external text" href="https://9to5google.com/2021/09/09/how-to-downgrade-from-the-android-12-to-android-11-on-google-pixel/">"How to downgrade from Android 12 Beta to Android 11 on Google Pixel [Video]"</a>. <a href="9to5Google" class="mw-redirect" title="9to5Google">9to5Google</a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20211018163031/https://9to5google.com/2021/09/09/how-to-downgrade-from-the-android-12-to-android-11-on-google-pixel/">Archived</a> from the original on 2021-10-18. Retrieved 2021-09-28.</cite>

</li>

<li id="cite_note-48"><a href="#cite_ref-48">^</a> <cite class="citation web cs1 cs1-prop-foreign-lang-source"><a rel="nofollow" class="external text" href="https://tweakers.net/nieuws/139023/huawei-stopt-met-het-uitdelen-van-codes-om-bootloader-vrij-te-geven.html">"Huawei stopt met het uitdelen van codes om bootloader vrij te geven"</a>. <a href="Tweakers" title="Tweakers">Tweakers</a> (in Dutch). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20230507183737/https://tweakers.net/nieuws/139023/huawei-stopt-met-het-uitdelen-van-codes-om-bootloader-vrij-te-geven.html">Archived</a> from the original on 2023-05-07. Retrieved 2023-05-07.</cite>

</li>

<li id="cite_note-49"><a href="#cite_ref-49">^</a> <cite class="citation web cs1 cs1-prop-foreign-lang-source"><a rel="nofollow" class="external text" href="https://tweakers.net/nieuws/190366/lg-stopt-eind-dit-jaar-met-tool-voor-unlocken-van-smartphonebootloaders.html">"LG stopt eind dit jaar met tool voor unlocken van smartphonebootloaders"</a>. <a href="Tweakers" title="Tweakers">Tweakers</a> (in Dutch). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20230507183738/https://tweakers.net/nieuws/190366/lg-stopt-eind-dit-jaar-met-tool-voor-unlocken-van-smartphonebootloaders.html">Archived</a> from the original on 2023-05-07. Retrieved 2023-05-07.</cite>

</li>

<li id="cite_note-50"><a href="#cite_ref-50">^</a> <cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.androidauthority.com/asus-unlock-bootloader-tool-removed-3352783/">"ASUS is apparently killing the ability to root Zenfones"</a>. Android Authority. 8 August 2023. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20240130155720/https://www.androidauthority.com/asus-unlock-bootloader-tool-removed-3352783/">Archived</a> from the original on 2024-01-30. Retrieved 2024-01-30.</cite>

</li>

</ol></div></div>

<div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2></div>

/* start https://en.wikipedia.org/ */

.mw-parser-output .side-box{margin:4px 0;box-sizing:border-box;border:1px solid #aaa;font-size:88%;line-height:1.25em;background-color:var(--background-color-interactive-subtle,#f8f9fa);display:flow-root}.mw-parser-output .infobox .side-box{font-size:100%}.mw-parser-output .side-box-abovebelow,.mw-parser-output .side-box-text{padding:0.25em 0.9em}.mw-parser-output .side-box-image{padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .side-box-imageright{padding:2px 0.9em 2px 0;text-align:center}@media(min-width:500px){.mw-parser-output .side-box-flex{display:flex;align-items:center}.mw-parser-output .side-box-text{flex:1;min-width:0}}@media(min-width:720px){.mw-parser-output .side-box{width:238px}.mw-parser-output .side-box-right{clear:right;float:right;margin-left:1em}.mw-parser-output .side-box-left{margin-right:1em}}

/* end https://en.wikipedia.org/ */

</style><style data-mw-deduplicate="TemplateStyles:r1237033735">

/* start https://en.wikipedia.org/ */

@media print{body.ns-0 .mw-parser-output .sistersitebox{display:none!important}}@media screen{html.skin-theme-clientpref-night .mw-parser-output .sistersitebox img[src*="Wiktionary-logo-en-v2.svg"]{background-color:white}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .sistersitebox img[src*="Wiktionary-logo-en-v2.svg"]{background-color:white}}

/* end https://en.wikipedia.org/ */

</style><div class="side-box side-box-right sistersitebox"><style data-mw-deduplicate="TemplateStyles:r1126788409">

/* start https://en.wikipedia.org/ */

.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}

/* end https://en.wikipedia.org/ */

</style>

<div class="side-box-text plainlist">The Wikibook <a href="https://en.wikibooks.org/wiki/Advanced_phone_customization" class="extiw external" title="wikibooks:Advanced phone customization">Advanced phone customization</a> has a page on the topic of: <a href="https://en.wikibooks.org/wiki/Advanced_phone_customization/Unlocking_your_bootloader" class="extiw external" title="wikibooks:Advanced phone customization/Unlocking your bootloader">Unlocking your bootloader</a></div></div>

</div>

<ul><li><a rel="nofollow" class="external text" href="https://source.android.com/devices/bootloader/locking_unlocking">Locking/Unlocking the Bootloader</a>, <a href="Android_(operating_system)" title="Android (operating system)">Android Open Source Project</a></li>

<li><a rel="nofollow" class="external text" href="https://lineageos.org/engineering/Qualcomm-Firmware/">Qualcomm's Chain of Trust</a></li></ul>

/* start https://en.wikipedia.org/ */

.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul ul{display:inline}.mw-parser-output .hlist .mw-empty-li{display:none}.mw-parser-output .hlist dt::after{content:": "}.mw-parser-output .hlist dd::after,.mw-parser-output .hlist li::after{content:" · ";font-weight:bold}.mw-parser-output .hlist dd:last-child::after,.mw-parser-output .hlist dt:last-child::after,.mw-parser-output .hlist li:last-child::after{content:none}.mw-parser-output .hlist dd dd:first-child::before,.mw-parser-output .hlist dd dt:first-child::before,.mw-parser-output .hlist dd li:first-child::before,.mw-parser-output .hlist dt dd:first-child::before,.mw-parser-output .hlist dt dt:first-child::before,.mw-parser-output .hlist dt li:first-child::before,.mw-parser-output .hlist li dd:first-child::before,.mw-parser-output .hlist li dt:first-child::before,.mw-parser-output .hlist li li:first-child::before{content:" (";font-weight:normal}.mw-parser-output .hlist dd dd:last-child::after,.mw-parser-output .hlist dd dt:last-child::after,.mw-parser-output .hlist dd li:last-child::after,.mw-parser-output .hlist dt dd:last-child::after,.mw-parser-output .hlist dt dt:last-child::after,.mw-parser-output .hlist dt li:last-child::after,.mw-parser-output .hlist li dd:last-child::after,.mw-parser-output .hlist li dt:last-child::after,.mw-parser-output .hlist li li:last-child::after{content:")";font-weight:normal}.mw-parser-output .hlist ol{counter-reset:listitem}.mw-parser-output .hlist ol>li{counter-increment:listitem}.mw-parser-output .hlist ol>li::before{content:" "counter(listitem)"\a0 "}.mw-parser-output .hlist dd ol>li:first-child::before,.mw-parser-output .hlist dt ol>li:first-child::before,.mw-parser-output .hlist li ol>li:first-child::before{content:" ("counter(listitem)"\a0 "}

/* end https://en.wikipedia.org/ */

</style><style data-mw-deduplicate="TemplateStyles:r1236075235">

/* start https://en.wikipedia.org/ */

.mw-parser-output .navbox{box-sizing:border-box;border:1px solid #a2a9b1;width:100%;clear:both;font-size:88%;text-align:center;padding:1px;margin:1em auto 0}.mw-parser-output .navbox .navbox{margin-top:0}.mw-parser-output .navbox+.navbox,.mw-parser-output .navbox+.navbox-styles+.navbox{margin-top:-1px}.mw-parser-output .navbox-inner,.mw-parser-output .navbox-subgroup{width:100%}.mw-parser-output .navbox-group,.mw-parser-output .navbox-title,.mw-parser-output .navbox-abovebelow{padding:0.25em 1em;line-height:1.5em;text-align:center}.mw-parser-output .navbox-group{white-space:nowrap;text-align:right}.mw-parser-output .navbox,.mw-parser-output .navbox-subgroup{background-color:#fdfdfd}.mw-parser-output .navbox-list{line-height:1.5em;border-color:#fdfdfd}.mw-parser-output .navbox-list-with-group{text-align:left;border-left-width:2px;border-left-style:solid}.mw-parser-output tr+tr>.navbox-abovebelow,.mw-parser-output tr+tr>.navbox-group,.mw-parser-output tr+tr>.navbox-image,.mw-parser-output tr+tr>.navbox-list{border-top:2px solid #fdfdfd}.mw-parser-output .navbox-title{background-color:#ccf}.mw-parser-output .navbox-abovebelow,.mw-parser-output .navbox-group,.mw-parser-output .navbox-subgroup .navbox-title{background-color:#ddf}.mw-parser-output .navbox-subgroup .navbox-group,.mw-parser-output .navbox-subgroup .navbox-abovebelow{background-color:#e6e6ff}.mw-parser-output .navbox-even{background-color:#f7f7f7}.mw-parser-output .navbox-odd{background-color:transparent}.mw-parser-output .navbox .hlist td dl,.mw-parser-output .navbox .hlist td ol,.mw-parser-output .navbox .hlist td ul,.mw-parser-output .navbox td.hlist dl,.mw-parser-output .navbox td.hlist ol,.mw-parser-output .navbox td.hlist ul{padding:0.125em 0}.mw-parser-output .navbox .navbar{display:block;font-size:100%}.mw-parser-output .navbox-title .navbar{float:left;text-align:left;margin-right:0.5em}body.skin--responsive .mw-parser-output .navbox-image img{max-width:none!important}@media print{body.ns-0 .mw-parser-output .navbox{display:none!important}}

/* end https://en.wikipedia.org/ */

</style></div><div role="navigation" class="navbox" aria-labelledby="Firmware_and_booting244" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="3"><style data-mw-deduplicate="TemplateStyles:r1239400231">

/* start https://en.wikipedia.org/ */

.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}

/* end https://en.wikipedia.org/ */

</style><div id="Firmware_and_booting244" style="font-size:114%;margin:0 4em"><a href="Firmware" title="Firmware">Firmware</a> and <a href="Booting" title="Booting">booting</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Processes</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Booting_process_of_Windows" title="Booting process of Windows">Windows</a>

<li><a href="Booting_process_of_Linux" title="Booting process of Linux">Linux</a>

<ul><li><a href="Booting_process_of_Android_devices" title="Booting process of Android devices">Android</a></li></ul></li></ul>

</div></td><td class="noviewer navbox-image" rowspan="10" style="width:1px;padding:0 0 0 2px"><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Booting <a href="Firmware#Computers" title="Firmware">firmware</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Types</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Proprietary_firmware" title="Proprietary firmware">Proprietary firmware</a></li>

<li><a href="Open-source_firmware" title="Open-source firmware">Open-source firmware</a></li>

<li><a href="Custom_firmware" title="Custom firmware">Custom firmware</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Interfaces</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Video_BIOS" title="Video BIOS">Video BIOS</a></li></ul></li>

<li><a href="Open_Firmware" title="Open Firmware">Open Firmware</a></li>

<li><a href="MultiProcessor_Specification" title="MultiProcessor Specification">MultiProcessor Specification</a></li>

<li><a href="Legacy_Plug_and_Play" title="Legacy Plug and Play">Legacy Plug and Play</a></li>

<li><a href="ARC_(specification)" title="ARC (specification)">AlphaBIOS</a></li>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Implementations</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="SeaBIOS" title="SeaBIOS">SeaBIOS</a></li>

<li><a href="Award_Software" title="Award Software">Award BIOS</a></li>

<li><a href="American_Megatrends" title="American Megatrends">American Megatrends</a>

<ul><li><a href="AMIBIOS" class="mw-redirect" title="AMIBIOS">AMIBIOS</a></li>

<li><a href="AMI_Aptio" class="mw-redirect" title="AMI Aptio">AMI Aptio</a></li></ul></li>

<li><a href="Insyde_Software" title="Insyde Software">InsydeH2O</a></li>

<li><a href="Phoenix_Technologies" title="Phoenix Technologies">Phoenix SecureCore UEFI</a></li>

<li><a href="TianoCore_EDK_II" title="TianoCore EDK II">TianoCore EDK II</a></li>

<li><a href="OpenBIOS" title="OpenBIOS">OpenBIOS</a></li>

<li><a href="Coreboot" title="Coreboot">Coreboot</a></li>

<li><a href="Libreboot" title="Libreboot">Libreboot</a></li>

<li><a href="LinuxBoot" title="LinuxBoot">LinuxBoot</a></li>

<li><a href="Kickstart_(Amiga)" title="Kickstart (Amiga)">Kickstart</a></li>

<li><a href="Run-Time_Abstraction_Services" title="Run-Time Abstraction Services">Run-Time Abstraction Services</a></li></ul>

</div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Hybrid firmware bootloader</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Common_Firmware_Environment" title="Common Firmware Environment">Common Firmware Environment</a> </li>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Bootloader" title="Bootloader">Bootloaders</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<li><a href="Comparison_of_bootloaders" title="Comparison of bootloaders">Comparison of bootloaders</a></li></ul>

</div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Implementations15" scope="row" class="navbox-group" style="width:1%">Implementations</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Acronis_OS_Selector" class="mw-redirect" title="Acronis OS Selector">Acronis OS Selector</a></li>

<li><a href="Barebox" title="Barebox">Barebox</a></li>

<li><a href="BootManager" class="mw-redirect" title="BootManager">BootManager</a></li>

<li><a href="BootX_(Apple)" title="BootX (Apple)">BootX (Apple)</a></li>

<li><a href="BootX_(Linux)" title="BootX (Linux)">BootX (Linux)</a></li>

<li><a href="IBoot" title="IBoot">iBoot</a></li>

<li><a href="Systemd-boot" title="Systemd-boot">systemd-boot</a></li>

<li><a href="Limine_(bootloader)" title="Limine (bootloader)">Limine</a></li>

<li><a href="Loadlin" title="Loadlin">loadlin</a></li>

<li><a href="NTLDR" title="NTLDR">NTLDR</a></li>

<li><a href="OpeniBoot" title="OpeniBoot">OpeniBoot</a></li>

<li><a href="Plop_Boot_Manager" title="Plop Boot Manager">Plop Boot Manager</a></li>

<li><a href="RedBoot" title="RedBoot">RedBoot</a></li>

<li><a href="REFInd" title="REFInd">rEFInd</a></li>

<li><a href="REFIt" title="REFIt">rEFIt</a></li>

<li><a href="SYSLINUX" title="SYSLINUX">SYSLINUX</a></li>

<li><a href="Windows_Boot_Manager" title="Windows Boot Manager">Windows Boot Manager</a></li>

<li><a href="Yaboot" title="Yaboot">Yaboot</a></li></ul>

</div></td></tr></tbody></table><div>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Partition layouts</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="GUID_Partition_Table" title="GUID Partition Table">GUID Partition Table</a></li>

<li><a href="Master_boot_record" title="Master boot record">Master boot record</a></li>

<li><a href="Apple_Partition_Map" title="Apple Partition Map">Apple Partition Map</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="System_partition_and_boot_partition" title="System partition and boot partition">Partitions</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="EFI_system_partition" title="EFI system partition">EFI system partition</a></li>

<li><a href="BIOS_boot_partition" title="BIOS boot partition">BIOS boot partition</a></li>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Utilities</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Software</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Flashrom_(utility)" title="Flashrom (utility)">flashrom</a></li>

<li><a href="Fwupd" title="Fwupd">fwupd</a></li>

<li><a href="UEFITool" title="UEFITool">UEFITool</a></li>

<ul><li><a href="Odin_(firmware_flashing_software)#Heimdall" title="Odin (firmware flashing software)">Heimdall</a></li></ul></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Hardware</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Bus_Pirate" title="Bus Pirate">Bus Pirate</a></li>

<li><a href="Raspberry_Pi" title="Raspberry Pi">Raspberry Pi</a></li>

</div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="Network_booting" title="Network booting">Network boot</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<ul><li><a href="Preboot_Execution_Environment" title="Preboot Execution Environment">Preboot Execution Environment</a>

<li><a href="NetBoot" title="NetBoot">NetBoot</a></li>

<li><a href="Remote_Initial_Program_Load" title="Remote Initial Program Load">Remote Initial Program Load</a></li>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">ROM variants</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<li><a href="EPROM" title="EPROM">EPROM</a></li>

<li><a href="EEPROM" title="EEPROM">EEPROM</a></li></ul>

</div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em">

<li><a href="ROM_hacking" title="ROM hacking">ROM hacking</a></li>

<li><a href="ROM_image" title="ROM image">ROM image</a></li>

<li><a href="Execute_in_place" title="Execute in place">Execute in place</a></li>

<li><a href="Devicetree" title="Devicetree">Devicetree</a></li>

<li><a href="Fastboot" title="Fastboot">Fastboot</a></li>

<li><a href="Instant-on" title="Instant-on">Instant-on</a></li>

<li><a href="Power-on_self-test" title="Power-on self-test">Power-on self-test</a></li>

</div></td></tr></tbody></table></div></div><div><div class="zim-footer">

This article is issued from <a class="external text" title="Last edited on 2025-08-04" href="https://en.wikipedia.org/wiki/?title=Bootloader_unlocking&oldid=1304230261">Wikipedia</a>. The text is available under <a class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en">Creative Commons Attribution-Share Alike 4.0</a> unless otherwise noted. Additional terms may apply for the media files.

</div>

</div></div>

</div>

</main>

</div>

</body></html>