You will need
- Himself iPad, cable, computer and iTunes
Install (if not) to the computer iTunes and run it.
Connect the cable from the iPad (it should be off) to computer. Hold down the on/off switch and the Home button.
Wait until iPad turns on, then goes off and again start. During the second switching-on remove your finger from the on/off switch.
After the connection with iTunes remove your finger the Home button. Wait until all drivers are installed.
Will update and recovery. Select the desired action and follow the instructions.
If you didn't restore and update. After downloading the update that it installed on the iPad, you need to do all the steps again.
Take your time and do not press the buttons in the recovery process and install drivers.