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---
title: Актуализации на фърмуера
parent: Ръководство за потребители
nav_order: 13
last_updated: 2026-07-07
description: Update your radio firmware over Bluetooth or USB — OTA process, version channels, pre-flight checks, and recovery.
aliases:
Tff7b72- firmware
Tff7b72- update
Tff7b72- ota
Tc9d1d9 - flash
Tc9d1d9---

Tc9d1d9# Актуализации на фърмуера

Поддържайте вашето Meshtastic радио актуално с най-новия фърмуер за нови функции, корекции на грешки и подобрения в сигурността.

Tc9d1d9## Проверка за актуализации

Tff7b721. Open the connected radio's configuration and, under **Advanced**, tap **Firmware Update**. The entry appears only for OTA-capable devices.
Tff7b722. Приложението проверява за налични версии на фърмуера.
Tff7b723. Available updates show the version number and changelog summary.

Tc9d1d9## Методи за актуализиране

Tc9d1d9### OTA (Over-The-Air) чрез Bluetooth

Най-често срещаният метод за актуализиране за потребителите на Android:

Tff7b721. Уверете се, че радиото ви е свързано чрез Bluetooth.
Tff7b722. Отидете до екрана за актуализация на фърмуера.
Tff7b723. Изберете желаната версия на фърмуера.
Tff7b724. Tap **Update** to begin the OTA process.
Tff7b725. Wait for the update to complete — **do not disconnect** during the update.

![Tff7b72Firmware checking for updates](Te6edf3../../assets/screenshots/firmware_checking.png)

Tff7b72> ⚠️ **Warning:** Interrupting a firmware update can brick your device. Ensure your radio has sufficient battery (>50% recommended) and maintain Bluetooth proximity during the entire process.

![Tff7b72Firmware disclaimer](Te6edf3../../assets/screenshots/firmware_disclaimer.png)

Tc9d1d9### In-App USB Update

When your radio is connected over **USB/serial** (rather than Bluetooth), the Firmware Update screen offers **USB File Transfer**. The app reboots the device into DFU mode, then prompts you to save the Ta5d6ff`.uf2` file to the device's DFU drive using the system file picker. This option appears only on a USB/serial connection — it is not available over Bluetooth.

Tff7b72> ℹ️ **nRF bootloader note:** Some devices (e.g. RAK WisBlock RAK4631) need their bootloader flashed with the vendor's serial DFU tool (such as `adafruit-nrfutil`) — copying the `.uf2` alone won't update the bootloader. The app surfaces a hint when this applies.

Tc9d1d9### Other Flashing Options

For recovery or when neither OTA nor in-app USB is available:

Tff7b72- Use the [Tff7b72Meshtastic Web Flasher](Te6edf3https://flasher.meshtastic.org)
Tff7b72- Or the [Tff7b72Meshtastic CLI tool](Te6edf3https://meshtastic.org/docs/getting-started/flashing-firmware) on desktop

Tc9d1d9## Канали на версиите

| Канал | Описание |
| ------------ | -------------------------------------------------------------------------- |
| Стабилен | Препоръчва се за повечето потребители; тествани версии |
| Алфа | Предварителни издания; може да съдържат грешки |
| Локален файл | Flash a firmware file you select yourself, instead of a downloaded release |

Tc9d1d9## Контролен списък преди актуализация

Преди актуализиране:

Tff7b72- Tff7b72[ ] Батерия > 50%
Tff7b72- Tff7b72[ ] Стабилна Bluetooth връзка
Tff7b72- Tff7b72[ ] Запишете текущите си настройки (те могат да се нулират при големи промени във версията)
Tff7b72- Tff7b72[ ] Проверете бележките към изданието за важни промени

Tc9d1d9## След актуализация

After the firmware is written, the app verifies the update and waits for the device to come back online:

![Tff7b72Verifying update and waiting for the device to reconnect](Te6edf3../../assets/screenshots/firmware_verifying.png)

След като актуализацията е успешна:

Tff7b72- Радиото ще се рестартира автоматично
Tff7b72- Bluetooth връзката ще се възстанови
Tff7b72- Проверете дали настройките ви са непокътнати
Tff7b72- Confirm the new version under **Currently Installed** on the Firmware Update screen — it's also shown on the node's detail page and the Connections screen

![Tff7b72Актуализацията на фърмуера е успешна](Te6edf3../../assets/screenshots/firmware_success.png)

Tc9d1d9## Отстраняване на неизправности

Tc9d1d9### Update Stuck

If the update appears frozen:

Tff7b72- Изчакайте поне 5 минути, преди да се намесите
Tff7b72- If truly stuck, power-cycle the radio
Tff7b72- Опитайте актуализацията отново

![Tff7b72Грешка при актуализация на фърмуера](Te6edf3../../assets/screenshots/firmware_error.png)

Tc9d1d9### Устройството не се стартира след актуализация

If your device fails to boot:

Tff7b721. Try connecting via USB to a computer
Tff7b722. Use the web flasher in recovery/DFU mode
Tff7b723. Flash a known-good firmware version
Tff7b724. Check the Meshtastic Discord for device-specific recovery steps

Tc9d1d9### Предупреждения за съвместимост

The app may show warnings when:

Tff7b72- Connected radio firmware is below minimum supported version
Tff7b72- Major version mismatch between app and firmware
Tff7b72- Deprecated features need migration

Tff7b72> ⚠️ **Important:** Always update the Meshtastic app before or alongside firmware updates to ensure compatibility.

Tc9d1d9## Свързани теми

Tff7b72- [Tff7b72Connections](Te6edf3connections) — reconnecting after a firmware update
Tff7b72- [Tff7b72Flashing firmware guide](Te6edf3https://meshtastic.org/docs/getting-started/flashing-firmware) — full firmware flashing walkthrough on meshtastic.org
Tff7b72- [Tff7b72Supported devices](Te6edf3https://meshtastic.org/docs/hardware/devices) — check firmware compatibility by device
Tff7b72- [Tff7b72FAQ](Te6edf3https://meshtastic.org/docs/faq/) — common questions on meshtastic.org

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