Restoring apple iPad
Try entering DFU mode and restore it from there.

To enter DFU mode:

Step 1. Connect iDevice with your computer.

Step 2. Start iTunes.

Step 3. Press power- and home-button of your iPhone and hold it down

Step 4. Maybe the “Turn-off” slider will appear – continue holding down both buttons!

Step 5. The iPad will turn off.

Step 6. When the display turns black for four seconds, release the power-button. Don’t release the home-button!

Step 7. iTunes will show you after 5 to 10 seconds that your iPad has entered the DFU mode.

Step 8. Restore Your phone

Hope this helps