GMMK Dump FW - gloryhzw/qmk_tool GitHub Wiki

Follow Paul's guide: https://github.com/PaulGameDev/GMMK_RE

Full

Pin Definition
J1 5V
J2 GND
J3 SWCLK
J4 SWDIO
J5 TBD
J6 TBD

Tape wire dump

U can tape a thin wire on to J3 and J4. NO NEED TO SOLDER!!!

  1. connect SWDIO and SWCLK only (connect GND if got issues)
  2. connect BOOT to GND (boot pin https://github.com/gloryhzw/qmk_tool/wiki/GMMK-Short-Boot-Pin)
  3. insert keyboard USB
  4. release BOOT to GND
  5. insert STLINK USB
  6. run openocd