iPads have a fault that sometimes puts them into a boot loop (dead battery logo, then apple logo, and repeats over and over when on a charger). This is caused by a completely dead battery on an ipad that was not powered off properly. The ipad thinks it is suppose to stay on, but the battery is dead. So when you plug in the charger the ipad immediately tries to turn on but is so dead it shuts back off and repeats.. There are a couple of fixes for this, but this is the easiest one that I have found.
All apple devices have a temperature protection circuit that will turn off the device if the temperature gets either too hot or too cold. If you put the device in the freezer for about 45 minutes and immediately put it on a charger when you take it out it will allow the device to get enough charge to properly boot up.
Note: If you have already tried to restore the device you will need to hook it up to itunes and complete the restore after the device has a decent charge (10% or greater).
Hope this helps others, it has worked for me.
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