Flashing firmware erases everything on the board, including all files and saved code. Back up any important files first.
- Select the firmware version below
- Click Flash Firmware and select the port when prompted
- Wait for the message Firmware flashed successfully!, then press RESET to reboot into CircuitPython
If flashing fails, put the board into bootloader mode and try again:
- Hold the BOOT button
- Press and release RESET
- Release BOOT