How to Flash a Firmware to USB-C Controller

Getting the Hardware

  • USB-C controller
  • Wire or Tweezer
  • USB-C cable for connecting to computer


Download and install QMK toolbox

Enter DFU (Bootloader) Mode

Connect the USB-C controller to the computer
Use the wire or tweezer to bridge the GND and RESET pin
After entering bootloader mode, the following message will be displayed in QMK Tool. You can start flashing the firmware to the controller.