Chosen Solution
The iPhone 5 refuses to charge once the battery is completely discharged. I have changed the battery and the charging port and problem is still there. When I put a charged battery in, the phone shows that it’s charging when plugged in. But again, once it empties to zero, charging it does nothing. Someone said i should be doing a hard reset. Anyone have any definitive answer please?
No charging on flat battery or turned off means bad U2 Tristar charging chip. Get the U2 Tristar Charging IC chip replaced. It’s a component on the logic board that goes bad when the user uses a copy lightning cable / non-certified MFi lightning cable or a car charger. You will need to find someone that does microsoldering for charging IC on iPhones.
