If you forgot the passcode to your iPad, or the device has been disabled, you can restore and unlock it with a computer or the Find My Website or app.
Recovery mode allows you to update or restore your iPhone using a computer with iTunes or Finder. Here's how to access it.
Your iPhone backups may fail in iTunes for several reasons: Your copy of iTunes may have been corrupted; you may not have enough space on your computer's hard drive or on the device to create the ...