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Hope someone can help, I am working on an iPad 3 Wifi (A1416). When I received it, the battery would never charge no matter how long it was plugged into the ipad charger. When the ipad was disconnected it would immediately shut off. I could not connect it to iTunes since it would not turn on with USB power. I replaced the battery, which was definitely bad upon inspection (one battery section puffy), but the ipad is doing the same thing with the new battery. Would this be a motherboard issue? Since the ipad has the cycling issue, do I need to get it to boot up before it begins to charge the new battery?
What happens when you connect it to iTunes? If it were me, I’d try to restore it in iTunes. Put it into DFU if it fights you. Restore it as a new device and see if that works. It might work…getting the “connect to itunes” screen is actually a good sign. Do you have an inline ampmeter to test the power IC? They are pretty cheap and very handy to have around. If its drawing amps, its probably a blown fuse/filter. Google the schematics and track down the blown one. If its not drawing any amps, then its probably a blown U2 IC.
This is a common issue with iPad 2’s and iPad 3’s. Your battery no longer hold a charge and the iPad will not boot up without a working battery. The constant reboots are what causes the “Connect to iTunes” screen. You will need to replace the battery.
Before you replace the component loading , I would try another charging jack ( if Restore does not help )
