Enable keyboard lighting and select the brightness you want.
Surface pro 4 keyboard backlight turn on.
Of course you can also use the new display brightness buttons in the action center with.
If you want to turn it on you can press and hold the key next to the key which you.
Increase the keyboard backlight on with fn f2.
Decrease the keyboard backlight off with fn f1.
For surface 3 type cover type cover for surface pro 4 surface go signature type cover surface pro signature type cover surface laptop and surface book.
Press the fn key again to unlock them.
Click on the tab to access additional options.
A light appears on the fn keys when the keys are locked into function mode.
So this is how you turn the backlight of the keyboard on or off.
Press the fn key to lock the function keys.
To turn off the backlight in the surface keyboard press the key next to esc key see the image below.
If you keep on pressing this key you can see that the backlight intensity goes down until it switches off completely.
Simply press fn del to increase or the fn backspace buttons to decrease the display brightness.
Activating the special keys increases or decreases the keyboard backlight on the surface keyboard.