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Fourth generation of iPad, released November 2, 2012, available in 16, 32, or 64 GB models. Model Number A1458

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Why is my iPad not booting after battery placement?

Hello everyone,

My old iPad had a defect battery, so I replaced it with a new one. But the battery is not working properly. The iPad will only go on while charging, there comes a apple logo and after about 3 seconds it will turn off and it will restart. There is no battery logo in the boot loop, only the iPad logo. I can’t turn on the iPad without charging.

What I have tried:

- I checked if the battery was connected properly

- I have charged the ipad for hours and it is still stuck in de boot loop

- I have charged the iPad in the DFU mode with a wall charger (It looks that nothing happend)

- I have charged the iPad in the DFU mode on a computer

- I tried to restore the iPad in the DFU mode with a computer. iTunes recognise the iPad and when it tries to flash the firmware: “Waiting for the iPad

- I have charged the iPad in the recovery mode on a wall charger (after about 20 minutes it will automatically return to the boot loop)

- I have put the iPad in the freezer for maximum 2 hours. I charged the iPad immediately after the freezer, but it boots immediately.

I am considering to charge the battery directly from a power source. Can I use the originally iPad adapter and a stripped USB-cable? What can I do more?

EDIT 1: I measured the voltage of the battery, it was 3.7V.

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Where did you buy the battery?

From my experience of changing batterys on iPads i know that the quality of most batterys you can buy is absolute crap. Most of them are dead when you get them. The easiest solution is to try another battery. It might just be your battery that is defective from the factory.

Another thing you could try if you do not want to buy a new battery is to do as you mentioned, to charge the battery directly. I would not try to charge it directly from the charger, as the iPad itself do a lot of charge regulation. Li-Ion batterys should be charged with care to avoid explosions and other nasty happenings.

Use something like this to charge Apple mobile batterys directly;

http://www.ebay.com/itm/Battery-Charger-...

Or maybe, just maybe you (or the old defective battery) damaged something on the mainboard of the iPad, these things do happen. In that case, after trying the mentioned steps before, let a professional take a look at it.

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