Chosen Solution
Hello am brian, i have this problem on my iphone 5s. When i plugged the phone to the charger it skipping the percentage let’s say the phone is 10% when I plug it to the charger suddenly goes to 27% i tried to change the battery several time but still same problem.Also i tried to dig deep on the web and many guys suggest that i should change the percentage IC. So please help me on how to change the IC on iPhone 5s
you would need a hot air station, flux and a soldering iron. if you havent done 1 before dont even attempt it yourself as you can do more damage to the board
I agree with Daniel. If battery replacements haven’t helped, it’s likely board level and replacing any ICs requires a high level of skill and equipment such as a hot air rework station, flux, and a microscope. It would most likely be cheaper to just replace the phone as opposed to having the IC replaced by somebody.
A sort of off the wall thing you can try: turn off the % display in Settings. It’s been a while since I saw it, but I worked on a 5-series phone (I don’t remember if it was an S or not) that was having weird battery issues and that tip actually improved the situation quite a bit. Charger (aka Tristar) IC and/or battery issues with 5-series phones were pretty common (unfortunately). Just to add to what Josef and Daniel said - a professional replacement of this IC will probably run $100+, and the equipment to try and DiY is much more expensive than that. So unless you’re looking into doing this professionally some day - in which case the investment might make sense - I’d just try and nurse this thing along. That said, if you’re really interested to see what it looks like: https://www.youtube.com/watch?v=0v-wKlVh… As a sidenote - I’ve seen different behavior with 4 and 5 series devices by charging the phone with an original Apple charging cord and/or block. I’ve never seen it effect the sort of issue you’re describing, but at minimum if this device is on its last leg - it might help it keep going a little longer.
