Replaced 3GS battery, but won't hold charge?
So I had error 19 on my iphone 3gs ( battery issue ). Replaced the battery and it restored but the battery only charged to 45% and wouldn't exceed that. Now it won't charge at all. It has been plugged in for 8 hrs and went from 42% to 35% WHILE plugged in. What could cause this? Faulty battery, or software/ other hardware issue?