For the Keychron K12, we’ve included all the normal and useful functions keys that can be accessible via the combination keys. Here is the table for all the combination keys and functions it can access.
Keychron K12 Key Combinations
fn1+keys
Keys
Function
fn1 + ESC
Symbol `
fn1 + 1
Screen Brightness Down
fn1 + 2
Screen Brightness Up
fn1 + 3
Launches Mission Control
fn1 + 4
Launchpad
fn1 + 5
Keyboard Backlight Down
fn1 + 6
Keyboard Backlight Up
fn1 + 7
Rewind
fn1 + 8
Play / Pause
fn1 + 9
Fast Forward
fn1 + 0
Sound: Volume Mute
fn1 + -
Sound: Volume Down
fn1 + =
Sound: Volume Up
fn1 + Backspace
Change Backlight Effects
fn1 + Q
Select Bluetooth device #1
fn1 + W
Select Bluetooth device #2
fn1 + E
Select Bluetooth device #3
fn1 + Q (long press for 3s)
Pair with Bluetooth device #1
fn1 + W (long press for 3s)
Pair with Bluetooth device #2
fn1 + E (long press for 3s)
Pair with Bluetooth device #3
fn1 + I
Menu (Only works in Windows mode）
fn1 + O
Scroll Lock
fn1 + P
Insert
fn1 + [
Page Up
fn1 + ]
Home
fn1 + ;
Page Down
fn1 + ‘
End
fn1 + L
Screen Shot
fn1 + K
Arrow Up
fn1 + M
Arrow Left
fn1 + ,
Arrow Down
fn1 + .
Arrow Right
fn1 + /
Delete
fn2+keys
Keys
Function
fn2 + ESC
Symbol ~
fn2 + 1
F1
fn2 + 2
F2
fn2 + 3
F3
fn2 + 4
F4
fn2 + 5
F5
fn2 + 6
F6
fn2 + 7
F7
fn2 + 8
F8
fn2 + 9
F9
fn2 + 0
F10
fn2 + -
F11
fn2 + =
F12
fn2 + Backspace
Turn On / Off the Backlight
fn2 + ，
Change The Backlight Color
fn2 + 、
Change The Backlight Color
More Key Combinations
Keys
Function
fn1 + B
Check Battery (Still in Beta, not 100% accurate) 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
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
fn2 + L + enter (long press for 3s)
Lock / Unlock the Backlight Effect
fn2 + M or .
Change the Backlight Color
fn2 + S + L + O (Bluetooth mode, long press for 3s)
Disable the Auto Sleep Mode
fn2 + S + L + R (Bluetooth mode, long press for 3s)
Auto Sleep in 10 Minutes Without Typing
fn2 + S + L + T (Bluetooth mode, long press for 3s)
Auto Sleep in 20 Minutes Without Typing
fn2 + S + L + Y (Bluetooth mode, long press for 3s)
Auto Sleep in 30 Minutes Without Typing
fn1 + win (Windows mode, long press for 3s)
Lock / Unlock the Keyboard (Only works in Windows mode)
fn1 + J + Z (long press for 3s)
Reset the Keyboard