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title: Firmware Updates

parent: User Guide

nav_order: 13

last_updated: 2026-05-13

description: Update your radio firmware over Bluetooth — OTA process, version channels, pre-flight checks, and recovery.

aliases:

• firmware

• update

• ota

• flash

Keep your Meshtastic radio up to date with the latest firmware for new features, bug fixes, and security improvements.

1. Navigate to Settings → Firmware Update or tap the firmware notification if shown.

2. The app checks for available firmware versions.

3. Available updates show the version number and changelog summary.

The most common update method for Android users:

1. Ensure your radio is connected via Bluetooth.

2. Navigate to the Firmware Update screen.

3. Select the desired firmware version.

4. Tap Update to begin the OTA process.

5. Wait for the update to complete — do not disconnect during the update.

!Firmware checking for updates

│ ⚠️ 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.

!Firmware disclaimer

For recovery or when OTA is unavailable:

• Use the Meshtastic Web Flasher

• Or the Meshtastic CLI tool on desktop

Before updating:

• [ ] Battery > 50%

• [ ] Stable Bluetooth connection

• [ ] Note your current settings (they may reset on major version changes)

• [ ] Check the release notes for breaking changes

After a successful update:

• The radio will reboot automatically

• Bluetooth connection will re-establish

• Verify your settings are intact

• Check the firmware version in Settings → About

!Firmware update success

If the update appears frozen:

• Wait at least 5 minutes before intervening

• If truly stuck, power-cycle the radio

• Attempt the update again

!Firmware update error

If your device fails to boot:

1. Try connecting via USB to a computer

2. Use the web flasher in recovery/DFU mode

3. Flash a known-good firmware version

4. Check the Meshtastic Discord for device-specific recovery steps

The app may show warnings when:

• Connected radio firmware is below minimum supported version

• Major version mismatch between app and firmware

• Deprecated features need migration

│ ⚠️ Important: Always update the Meshtastic app before or alongside firmware updates to ensure

│ compatibility.

• Connections — reconnecting after a firmware update

• Flashing firmware guide — full firmware flashing walkthrough on meshtastic.org

• Supported devices — check firmware compatibility by device

• FAQ — common questions on meshtastic.org