Chosen Solution
Hi, Firstly just a little back story about myself. I’ve been repairing phones (mainly iPhones) for a few years. Mainly screen, battery, dock connectors, headphone ports and so on. So nothing very technical but I know my way around and I’m reasonably experienced. A friend of mine gave me a iPhone6 which was her daughters. The phone was “dead”. A small crack on the right of the screen, and it wouldn’t turn on. No “please charge" symbol when you pressed the power button. The phone would not charge at all. So firstly I left it connected to an Apple charger for a few days. No response, no charge at all. Ordered a new battery and a new screen (although the crack was small it was worth doing). All from a good OEM source I use in the UK often. Disconnected the battery in the first instance. Installed the new screen and swapped the components over. Installed the new battery, then the screen and then connected the battery back up again. Everything seemed fine but the area around the back of the phone (where the screen connections are) is getting warm/hot. Battery drain is fast (about 2% per half hour). I was concerned that maybe I had damaged a cable whilst changing the components on the front screen so ordered a complete assembly with new parts and just swapped over the home button (to keep the fingerprint ID working properly). The issue is still there. Back of the phone is getting warm/hot to the touch. Am I just wasting my time with this phone and admit defeat?! The initial symptoms did make me wonder what was going wrong. Oddly when I took out the original screen I noticed that it wasn’t an Apple one. So I’m wondering if someone previously has replaced the screen, maybe not disconnected the battery first and then shorted something on the logic board. Is there anything else I can check before admitting defeat with this one? The phone is now displaying the same symptoms as before, battery dead, will not switch on at all. Many thanks in advance, Andrew.
To start with, you may try plugging in the phone with battery to charger to check if it draws current with screen disconnected without overheating anything. It’s clear you have a short somewhere near the top but heaven knows what’s due to without testing circuit by circuit or using a thermal cam to get closer to the short. Unless one has valuable info about the time between the moment phone worked and then stopped working it’s a bit hard to provide troubleshooting steps.. If you have time to invest you can try removing the logic board from the housing, plug it to a dock with battery connected to help pinpointing the shorted area, but then you’d probably still need to remove shields, components and so on..being an iPhone 6, with current value it may be questionable if it’s possible to achieve a decent time/reward economically.
