Battery drains completely then won't charge or turn back on
I am repairing an iphone 5. I have replaces battery and everything is working great! How ever, weather the battery is draining even when powered off, of once I turn the phone off I can not get any indication that the phone is charging because it won't turn on.
The phone seems to work fine when I place a new charged battery and will show charging when plugged in. Will get to 100%. But if the battery is trained... then there is nothing I can do to get it to come back on.
Is this a good question?