Special Firmware for Keychron K8

How to update the firmware?

Warning: Please download this firmware as per requested by our Customer Service Team only. Otherwise, there is a chance it can damage your keyboard.


Please follow the instructions correctly to flash the firmware.

  1. Download the correct firmware for your layout (K8 Optical White Backlight / K8 Optical RGB Backlight). Your keyboard could break if you accidentally install the Gateron firmware to the Optical version, Hot-swappable version or vice versa.
  2. Make sure your keyboard is switched to the right OS system, e.g.: Switch the keyboard to Windows if you're using a Windows device.
  3. If you flash the keyboard in Bluetooth mode, it will break your keyboard.
  4. Make sure your keyboard is connected to the computer with the cable that came with the box only. If you are using a third party cable, please make sure the cable can pass data as some cables can only be used for charging.
  5. Make sure only the Keychron keyboard is connected to your computer. If other keyboards are connected to your computer, the firmware of these keyboards might also be flashed. If you have multiple Keychron keyboards, please flash the firmware one by one. Do not plug all of the Keychron keyboards to the computer at the same time.
  6. Now, you can start running the exe file for Windows or the app file for the Mac.
  7. After flashing the new firmware, hold Fn + Z + J together for 5 seconds to do the factory reset. You are now good to go.


Download the Firmware from the following link:

Optical Hot-swappable Switches K8 White Backlight Version

Optical Hot-swappable Switches K8 RGB Backlight Version

If you meet the problem of “App is damaged and can’t be opened. You should move it to the Trash. ”  Here is the instruction below to fix it. 

1.Download the GateKeeper_Helper (you can refer to this link and download it.) .Completed download and open it. Then open the “GateKeeper_Helper”.

2.You will see five options and ask you enter your choice, now you type 3 and enter, it will show you that “Drag & Drop The App Here Then Hit Return: “, please drop the firmware to the GateKeeper and hit Return and then input your password and click enter, now you will see the [Process completed], done!

Finally, please try to open our firmware again and you should be able to process the firmware update now, thank you.

RGB Backlight Firmware release date: 10/19/2020
White Backlight Firmware release date: 11/5/2020