Keyboard still seems to work, as I can still toggle the backlight on the keyboard on/off
How to disable the Windows key on your keyboard (36). I am not sure about your laptop but you try the following steps. Lenovo Keyboard Backlight Not Working.To expand its menu, continue pressing the spacebar If you press FN + F9 it will just turn on the white keyboard backlight default color.
If the backlight icon is not on the F5 key, look for the backlit keyboard key on the row of function keys. ive tried Fn+F9 already and that does nothing. Press the keys again to change the modes.