Sometimes the Apple iPad will freeze up and appear to be dead and only show a black screen. Usually you can fix this issue by resetting the device.
The first thing you will want to try is a reset. Press and hold the “Sleep“/”Wake“/”Power” button and the “Home” button simultaneously for about 15 seconds. The iPad should then show the Apple logo and restart. Barring any major issues, your data on the iPad should be preserved.
If a reset doesn’t work, make sure you have enough battery power. Connect the iPad to a power outlet using the standard adapter and cable, then attempt to power on the device. Be sure that you use a power outlet, as the power from a computer may not supply enough power to the device.
These steps work most of the time. If the device still won’t power on after these steps, you may need to seek service from Apple.