20 - 30 Minuten
My girlfriend had an iPhone with a problem in battery and she decide to leave it at the repair house. Then I asked her to give me the device, so I could sell its parts on web. When I put my hands on it, I decided to try to repair the cell. Looking over the net, I figure out that the problem could be in the model of the battery and would try to give a shot on that issue.
I watched some videos on youtube about how to open an iPhone. It was all fine. Some connectors are really small and a kind of difficult to put in place. I wonder why Apple did the battery replacement a job so hard. Too many steps to replace a part that is sure to have problems.
Do the work smooth and you'll be fine.