Recently I upgraded an old Gameboy Pocket with a faulty screen. Installed is a 2.6″ backlit LCD with a 3D printed mount, FunnyPlaying speaker and Clean Power voltage regulator.
Gameboy Pocket with 2.6″ Backlit LCD
FunnyPlaying upgraded speaker
CleanPower GBP voltage regulator
LCD power & touch controls
Custom 3D printed screen mount