For Keychron QMK keyboards with 100%, 96%, 80%, or 75% layouts, we've summarized the general and utility default function keys that can be accessed via key combinations, including wireless connect, changing light effects, resetting the keyboard, and other function key combinations. Below are tables listing all the key combinations and the functions they can access.
Wireless Connect
Light Effect
fn + Knob Clockwise
(Backlight Turns On when Backlight is Off)
fn + Knob Counterclockwise
(Backlight Turns Off when Brightness is at its Lowest)
Reset The Keyboard
Other Key Combinations
(Only works in Bluetooth or 2.4G mode)
RGB-Backlight Version
Backlight Red = 0~30% Power
Backlight Blue = 30%~70% Power
Backlight Green = 70%~100% Power
White-Backlight Version
Two Rows Backlight off & the Other On = 0~30% Power
One Row Backlight off & the Other On= 30%~70% Power
All Backlight On = 70%~100% Power
Non-Backlight Version
Q Backlight Red= 0~30% Power
Q W Backlight Red = 30%~70% Power
Q W E Backlight Red = 70%~100% Power
(C3 Pro Exclusive)
Multimedia and Function Keys
Above are the default key combinations for Keychron QMK keyboards with 100%, 96%, 80%, and 75% layouts. Some keyboard models may not be fully compatible; please refer to your keyboard’s manual for details. You can customize your key combinations on each layer and access more functions through the launcher software. Please click here and read "How to Use Different Layers to Set the Key Combinations" for details.