10 - 30 minuten
The battery on my iphone 4S needed to be charged at least twice a day; so, I knew it needed replacement. In these times it is a throw-away-world; don't repair, throw away, and buy a new one. Well, at 77 I still remember repairing everything that broke on the farm as a boy. That has stayed with me all my life.
When I received the repair kit, I checked to make sure all required items were enclosed. They were, with the exception of the directions. Being on a slow dial up line to the internet, I expected another protracted download because most directions these days rely on pictures. I learned the spoken word as instructive to accomplish tasks. Anyway, I logged on and read the instructions which were excellent, but I would make one suggestion.
I read about 50 or so comments from others and it was quite enlightening. The best advice I found was to NOT touch any electronic part in the phone - use tweezers or small needle nose pliers. One piece of advice missing was about the folded ribbon cable from the battery to the mother board connector. One must pay special attention to the folded ribbon cable to ensure it is between the inserted battery and the mother board. The only other consternation point occurred when the phone was reassembled and the power button was depressed. It seemed to take a very long time for the phone to power on, but it did come on without any problems whatsoever. I would suggest the battery be charged to approximately 30-40 percent rather than 14 percent. This level is approaching the point when the iphone will automatically shut down. However, this may be a manufacturing dictate rather than a charging process. The experience was a good one since I did a lot of research before ever removing the first screw.