Third generation of iPad, featuring 4G capabilities, released on March 16, 2012. Model number A1430. Repairs require heat and careful prying.

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After drop, will only boot if connected to power, then boot loop.

After I dropped my iPad, it immediately shut off. The battery was at 54%. Now, it will not power on at all unless it's connected to the external adapter. When connected to power, it will boot, but shortly after the lock screen is shown, it "gracefully" dims the screen to black (like it would after a few minutes of inactivity), but instead of sleeping, it reboots. The battery charge indicator now shows 100%, which is obviously wrong. I have tried the various boot methods - DFU, "Connect To iTunes", etc, but none of this helped. As soon as I unplug from the AC adapter, the device shuts off completely - there doesn't seem to be any power whatsoever coming from the battery.

Before purchasing a new battery, is there a way to determine whether the battery is the problem, perhaps with a multimeter? I am wondering if the connector between the main board and the battery was somehow jarred loose or perhaps broke. Would it be prudent to take it apart, then re-assemble, in hopes that something that came loose would be re-seated? I'd rather not buy a battery only to find out that it doesn't solve the problem.

Any expert advice is welcome. Thanks.

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Glen, unless you take it apart and take a look at it, it will only by a guess. Yes, I'd start with the battery connector and the battery. Take a very close look at your connections, make sure all cables are properly seated and visually check all the components carefully for any broken pieces. No, you can not properly check the battery with a multimeter (not in an easy way). "Would it be prudent to take it apart, then re-assemble, in hopes that something that came loose would be re-seated" not unless you actually see something has come loose.

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Glen will be eternally grateful.
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