Keychron K8 Benutzerhandbuch Seite 6

For RGB version – Press fn + right arrow / left arrow to change color.
4. Switch Between Function and Multimedia Keys (F1-
F12)
For Windows: Press fn + X + L (for 4 seconds) to switch.
For Mac: Go to system settings > Keyboard and enable the function keys.
*For F5 & F6 as function keys press fn + K + C (for 3 seconds) and use same shortcut to
switch.
Settings Keyboard
6
Multimedia keys
Function keys
Enable the function keys