User Guide

B. How to use "FN" Key?
The Fn key can not be used alone, you need to press Fn key with some keys.
For example:
Press "Fn " and RGB" at the same time : Keyboard Backlight Switch (First
press: single color constant light mode)
Press "Fn " and RGB" at the same time : Keyboard Backlight Switch (Second
press: Multi-color automatic switching)
Press "Fn" and "A" at the same time : choose android system
Press "Fn" and "S" at the same time: choose windows system
Press "Fn" and "D" at the same time: choose IOS system
But since this keyboard case is for Galaxy Tab S7 FE/ Tab S7 Plus tablet, you
need to press "Fn" and "A" at the same time to choose android system before
using this keyboard.
If there is any question about our keyboard case, please feel free to contact us
at any time. We will try best to support you.
Wish you enjoy INFILAND backlit keyboard case!