If you restore on a different computer that was never synced with the device, you will be able to unlock the device for use and remove the passcode, but your data will not be present. You may have to force iPad/iPod into Recovery Mode. http://support.apple.com/kb/ht4097.f the screen is not responding to touch, reboot the iPad. Reboot the iPad by holding down on the sleep and home buttons at the same time for about 10-15 seconds until the Apple Logo appears-ignore the red slider if it appears on the screen-let go of the buttons.