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OTA Meshtastic Updates on Android

It’s simple to push OTA Meshtastic updates with Android-based devices. You just need to gather a few things first. Before proceeding, adjust your Android settings:

  • Go to Settings > About Phone
  • Scroll to the bottom and tap “Build Number” 5 times to enable Developer Mode
  • In Developer Settings, enable Stay Awake (keeps the phone from sleeping while charging)
  • developer options

Steps to Update​

1. Download the DFU Utility​

Download the Device Firmware Update Utility from the Google Play Store:

DFU Utility on Google Play

2. Get the Meshtastic Firmware​

Download the current Meshtastic firmware release from GitHub:

Meshtastic Firmware Releases

Important:

  • Choose the correct MCU firmware — in this case, nRF52840
  • Unzip the downloaded package

3. Open the NRF Device App​

Launch the NRF Device App you just installed.

4. Select the Firmware​

  • Tap Select Firmware
  • Navigate to where you unzipped the nRF52840 firmware
  • Select the appropriate zipped OTA package for your node

Example: For Rak4631 WisBlock nodes, choose:
firmware-rak4631-2.7.3cf574c7-ota.zip

Tip: Look for filenames that start with firmware-rak4631 and end with -ota.zip.

5. Choose the Device​

  • Tap the Select button next to Device
  • Choose the node you want to update

6. Start the Update​

  • Plug your phone in
  • Tap Start to begin the OTA update process
  • dfu utility

Warning​

If your phone powers off or the transfer is interrupted:

  • The device may soft brick
  • You’ll need to enter DFU mode and push the firmware manually using a standard flashing method