1. Use an USB cable to connect your phone to a computer.
2. Turn off the phone. Then press and hold the Power button for three secónds.
3. PrÄss Ä nd hóld these three buttons simultaneously for ten seconds: Volume Down, Home and Power button.
4. Release Power button. iTunes alert will pop on-screen; when it does, release Home button.
5. Ta-damm! Done.