Ipad 4 battery stuck at 1% after Battery replacement
I took out my iPad 4 after a year or so to find that the battery had swollen to an extent that it had separated the top right bit of screen off the body.
I got a replacement battery and tried to replace it myself., followed the iFixit guide for it which was great. The device ran fine till the battery drained till 1% after which it turned off . While charging , the device does show the lightning symbol, but the charge percentage does not increase. The
The Apple ipad charger/cable are known and working.
I’ve tried the following so far:
-Re-seated the logic board to make sure the pins were making good contact with the battery
-Checked the voltage across the +/- of the replacement battery which showed 3.12V, does this mean that this battery is bad or is it just discharged?
-Soft Reset(Home + Power)
-Charging while powered off
Is there anything else I can check to identify the root cause? I was considering the following:
-Will putting the ipad into DFU help?
-How can i identify a bad Tristar/U2 IC chip?
-Is it possible that the swelling up off the old battery damaged something else in the circuit?
Esta é uma boa pergunta?