Unlatch the flex connector with a guitar pick or your fingernail, then gently pull the flex cable free.

Using a small PH00 Phillips bit from your screwdriver kit, loosen the screw holding the LED assembly in place.

The screw can stay in the assembly. The thin PH00 bit can sneak past the LED circuit board so you don't need to remove it.

Pull the LED indicator board free, unhooking it from the 4-wire cable (LCD backlight power)