20 - 30 minuten
I've been using my phone for over 3 years now and have noticed that the battery no longer holds the charge as well. Since I would like to use the phone for another 2 years, I decided to order the replacement battery.
Overall, the repair took me over an hour because I had never seen iPhone cable connections before and wanted to be very careful. I do have some experience building my own computers and still found the battery replacement procedure, for the first time only, to be difficult. Also, I was using the guide with very low resolution images and some of them were unclear as to how exactly I should lift the connectors. I actually had to watch the quick video to understand how easy it was to lift the pads.
When I got to replacing the battery, I realized that it was about 1/16 inch longer than the original, so I thought it wouldn't fit, but after placing it down, it fit fine.
I put everything back quickly but got stuck when screw #6 wouldn't hold. Oblivious to the problem, I used the longer screw from under the "do not remove" sticker. The next day, while going to the airport on the highway, I realized that my GPS signal is not working. I came home, read about similar issues online, all of which had pointed to connector #7, and opened the phone again. Unfortunately, this time I didn't have a suction cup and after trying to lift the screen with various tapes, used a tiny screw driver, slightly damaging the rubber ring that goes around the perimeter of the screen.
After opening the phone, I checked connection #7 and thought that it was completely fine. I closed the phone and confirmed that I still have no GPS signal. I started reading further and found a note about connector #6. I opened the phone one more time, further damaging the rubber ring, and lo and behold, couldn't find connector #6. As it turned out, the connector got jammed against the bezel while I was replacing the logic panel and I forgot to connect it altogether. But after a few mishaps and some minor damage, I got the new battery in!
Make sure all the connectors - 1-7 - are connected, make sure the two pins by #7 are touching the bezel and there are no spare parts, switched screws.