In some situations, such as your computer not recognizing your iPad or your screen getting stuck on the Apple logo, you'll need to restore your iPad to get it back up and running again.

If you upgrade your iPad and gift, sell, or trade in the old one, perform a factory reset to delete all your data. A factory ...

If your iPad is working normally, getting the screen to rotate into either landscape ... of the device starts working normally again. To reset all settings... Go to the "Settings" app.