Great tutoial! I wasn’t able to get GPS positioning right (large cone of confusion). Changes the GPS antenna and flex cable and BAM!!, now it’s working.
Don’t be a miser and don’t save on tools. I used the Anti-Static Project Tray which it had a bundle kit of iOpener, tools etc etc, and it saved me a lot of trouble.
There are a lot of SUPER SUPER small screws that you need to keep track.