Keyboard Firmware
C1 Professional 8K
Obtain C1 Professional 8K ANSI RGB Model Firmware
*firmware model 1.1.0 up to date on July 19, 2025
-Added LKP and debounce performance.
-Added per-key RGB and superior combined RGB lighting results.
Obtain C1 Professional 8K ISO RGB Model Firmware
*firmware model 1.1.0 up to date on July 19, 2025
-Added LKP and debounce performance.
-Added per-key RGB and superior combined RGB lighting results.
C2 Professional 8K
Obtain C2 Professional 8K ANSI RGB Model Firmware
*firmware model 1.1.0 up to date on July 22, 2025
-Added LKP and debounce performance.
-Added per-key RGB and superior combined RGB lighting results.
Obtain C2 Professional 8K ISO RGB Model Firmware
*firmware model 1.1.0 up to date on July 22, 2025
-Added LKP and debounce performance.
-Added per-key RGB and superior combined RGB lighting results.
C3 Professional 8K
Obtain C3 Professional 8K ANSI RGB Model Firmware
*firmware model 1.1.0 up to date on July 19, 2025
-Added LKP and debounce performance.
-Added per-key RGB and superior combined RGB lighting results.
Obtain C3 Professional 8K ISO RGB Model Firmware
*firmware model 1.1.0 up to date on July 19, 2025
-Added LKP and debounce performance.
-Added per-key RGB and superior combined RGB lighting results.
Obtain C3 Professional 8K JIS RGB Model Firmware
*firmware model 1.0.0 up to date on June 27, 2025
JSON Recordsdata
C1 Professional 8K
Obtain C1 Professional 8K ANSI RGB Keymap JSON File
Obtain C1 Professional 8K ISO RGB Keymap JSON File
C2 Professional 8K
Obtain C2 Professional 8K ANSI RGB Keymap JSON File
Obtain C2 Professional 8K ISO RGB Keymap JSON File
C3 Professional 8K
Obtain C3 Professional 8K ANSI RGB Keymap JSON File
Obtain C3 Professional 8K ISO RGB Keymap JSON File
Obtain C3 Professional 8K JIS RGB Keymap JSON File
Methods to flash the keyboard firmware on totally different techniques
Mac System
1. Open the launcher web site. Hyperlink: https://launcher.keychron.com/#/firmware/flash?power=true&hold=true
2. Plug the ability cable into your keyboard.
3. Click on the ‘Join‘ button within the higher left nook and choose the keyboard of the corresponding mannequin.

4. Whenever you get to the subsequent web page, please click on “Subsequent” to flash firmware.

5. Within the present state, unplug the keyboard USB cable and let the keyboard disconnect.

6. Whereas the keyboard is disconnected, press and maintain the ESC of the keyboard and concurrently join the keyboard to the pc with the USB cable.Let the keyboard enter the state of making ready to replace the firmware.

7. Click on the ‘Match System‘ button beneath, choose the machine that begins with DFU, and join it.

8. After efficiently matching, the ‘Flash Firmware‘ button will seem, click on it to begin updating the firmware.
(Don’t disconnect the keyboard from the pc whereas flashing firmware.)

9. Wait some time, ‘Firmware replace efficiently’ is displayed on the high of the display, “Firmware Replace” full.

Home windows System
1. Plug in energy cable to your keyboard.
2. Obtain and set up the DFU driver for Home windows system, after getting accomplished the set up, please restart your machine.
Obtain DFU Driver for Home windows
3. Obtain the keyboard firmware (see above on this web page) and obtain the QMK Toolbox.
Obtain QMK Toolbox for Home windows
4. Unplug the cable from the keyboard.
5. Open the QMK Toolbox.
6. Take away the area bar keycap to seek out the reset button on the left facet of the area bar change on the PCB.

7. Press and maintain the reset button, and plug within the energy cable concurrently. Don’t launch the reset button until the QMK Toolbox show in yellow phrases “***DFU machine related”. This means that your keyboard has entered into DFU mode.

8. Click on open and select the firmware. Click on the Flash button. It is going to begin flashing. (Word: Do NOT unplug the ability cable whereas it is flashing.)

9. Wait a number of seconds and whenever you see the content material beneath, it means the keyboard has flashed efficiently manufacturing unit reset.

