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Drag & Drop nRF52 Firmware Updates

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Before flashing confirm that you have RAK4631 and not a RAK4631-R If this is not the case, fear not. The hardware is identical but requires changing the bootloader. Instructions on how to do this are located here.

Flash Firmware​

Download and unzip the latest firmware from Meshtastic Downloads.

  1. Connect your device to your computer with a USB data cable.
  2. Double click the reset button on your device (this will put it into bootloader mode)
  3. Notice a new drive will be mounted on your computer (Windows, Mac, or Linux)
  4. Open this drive and you should see three files: CURRENT.UF2, INDEX.HTM, and INFO_UF2.TXT
  5. Drop the appropriate firmware file (firmware-DEVICE_NAME-vx.x.x-xxxxxxx.uf2) from the release onto this drive.

Once the file has finished copying onto the drive, the device will reboot and install the Meshtastic firmware.

Issues When Upgrading from A Previous Version of Meshtastic​

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Previous versions of the Meshtastic firmware may save stale data, causing devices to get stuck in a crash loop during startup. If you experience issues when upgrading your nRF52 device from a previous version of Meshtastic, you may need to perform a full factory reset of the internal flash memory.

Follow the guide to factory erase your nRF52 device before continuing to flash firmware.

Connect and Configure Device​

After flashing the Meshtastic firmware to the device, you can proceed with the initial configuration.