Connect the iPad to the computer that you originally synced the device to, using the iPad's included USB cable. If you do not have access to that computer, you can still unlock the iPad, but you will lose all your data. Open iTunes on the computer, and select the iPad's name listed in the left pane under Devices..Click Summary from the tabs area near the top of iTunes.Click Restore and select Don't Back Up when a message opens asking you to create a backup of the device's data on iTunes.pen iTunes on the computer, and select the iPad's name listed in the left pane under Devices.. Click Summary from the tabs area near the top of iTunes. Click Restore and select Don't Back Up when a message opens asking you to create a backup of the device's data on iTunes.