5.15 How to Recover IoT BT Devices on Failure
If the program operation for an IoT Bluetooth® device fails, it is possible the memory on the board has been
corrupted by a previously loaded application, or the application used a custom baud rate that the download
process does not detect.
To recover from this, it may be necessary to reset the board to factory defaults, as follows:
1. Press and hold the Recovery button (SW1).
2. Press the Reset button (SW2).
3. Release the Reset button (SW2).
4. Release the Recovery button (SW1).