iPhone only lasting 2 hours between charges - not much of a mobile device since its almost always plugged into the charger.
Piece-of-cake! ifixit shipped it quickly. The instructions were very clear and straight forward to follow. Got it done in about 15 minutes. The phone feels like new again.
Reinstalling the logic board took a couple trys. Be sure to test the alignment with the SIM card before putting all the screws back in.