Il Mio Problema
iPhone 4 battery was not holding much of a charge anymore. For 3 years old, it was okay, but $20 to fix it seemed like a good deal.
La Mia Riparazione
I watched MJ's video on the AT&T model and followed the "iPhone 4 Battery Replacement" guide. It's good to run through these a few times before opening it up. The rep . . .