Restore bricked 268 - gloryhzw/qmk_tool GitHub Wiki

Connect Under Reset

1. connect STLINK
2. Power on
3. Assert reset pin
4. Attach SWD
5. De-assert reset pin
6. Restore jumploader by SWD

https://github.com/gloryhzw/qmk_tool python sonix_swd_flash.py 0 0x200 your_jumploader.bin --openocd 127.0.0.1:4444