Chosen Solution
Hello everybody. I have an iphone 7 128gb. I suspect the logic board being kaputt. Phone only reacts to charging when off. As soon as it boots, no charging. Battery constantly shows 1% even tho it has more. I tried replacing charging port - no help there. I replaced the battery - no help there. Do you think it is a faulty chip on the motherboard? It no longer reacts in DFU mode which is funny. It goes there but the PC does not recognize it. Thanks for any input. :-)
Most likely…any charging related issue is usually battery/charge port/logic board. If you have eliminated the first two, then the logic board is next in line. It would help if you gave us a bit of background on what happened to the phone in the days/weeks leading up to this issue. Was it dropped, repaired or came into contact with water? You’ll want to find a shop that does micro-soldering repairs and they can properly troubleshoot the phone for you.
