Instructions
Select "Start a Repair Request" on the Microsoft Xbox 360 website (see Resources).
Complete the form, including your name, address and Xbox 360 serial number (located on the back of your console). Microsoft will provide a shipping label with which you can return the unit for repair.
Pack the bare console, sans hard drive, accessories and discs, in a shipping box with bubble wrap. Put the shipping label on the box and take it to a United Parcel Service shipping location. Write down the tracking number.