Running Meshtastic on RAK WisBlock NRF52 based boards relies on the avaliability of the Arduono bootloader.
This process only needs to be performed once
pip3 install pyocd
- Download the required bootloader: WisCore_RAK4631_Board_Bootloader.hex
- Connect the RAKDAP as follows:
- Flash the bootloader
pyocd flash -t nrf52840 .\WisCore_RAK4631_Board_Bootloader.hex
- Continue with the normal instructions
Alternate methods of flashing are outlined here.