iPhone 4S motherboard overheating after water damage cleaning
I got iPhone 4S, it was water damaged, I took it apart and cleaned it with Isopropyl, took apart the motherboard and cleaned it, and all connectors.
I replace dock connector and battery.
Now when I turn on the phone, it works but the motherboard gets really really hot, until I HAVE to shut it down. Battery stays cool.
When I plug charger, it shows the little symbol of "charging" although the battery level keep going down and not up.
Must be some component on the motherboard, right?
Is it a hard fix?, does the phone even have a chance in this world?
Thanks so much for any help.
Is this a good question?
It appears that you are having issues with either the charging coil, charging IC or any component thereof. These components are wither BGA IC's and require a rework station, or they are minute in size and very difficult to solder for the average DIY'er
by oldturkey03
You must be right oldturkey03, i asked a few techs, and some didn't wanna touch the phone, only one store was nice enough to give me a 170$ quote on replacing the charging coil. There is no chance that my Electronics Engineer brother can do it with a professional soldering tool?, only a rework station can manage that??
by Mo Ne
If your brother has the tools, I am sure that he knows how to use those, he could replace the coil. I mean at this time, you do not really have anything to lose by letting him fix it for you.
by oldturkey03
i had the same issue: i checked the heat source and recognized that the back camera went really hot during phone use. to check this i unplugged the connector of the back camera, then it did'nt went hot any more. After a week i plugged it in again and it was in normal temperature and still full funcionally. Good luck.
by ugurakgoz