Chosen Solution
Does anybody know if, and how I can replace the trackpad button? I have two upper cases, one with a bad trackpad button, the other with a not functioning on / off switch. Try to make one good upper case.
It can’t be done ;-( The metal plate that seals everyting (keyboard, trackpad, buttons) is welded and glued in place. I have tried time and time again, it cannot be removed without damage. Industrial design the way it shouldn’t be. Sigh. Get yourself a new topcase, they are not too expensive