Find the serial number on your Surface Cover
Before you can register or get service for your Surface Typing Cover, you need to know its 12-digit serial number.
Surface Pro 4, Surface Pro 3, Surface 3, Surface Pro 2, Surface 2, Surface Pro, Surface RT.
To find the serial number on your Surface Cover, look on the spine of the Cover (the area that attaches to your Surface). The serial number is a 12-digit string of numbers that looks like this: XXXXXXXXXXXX.
The serial number may be toward the centre, as shown here, or on one side.
Find the serial number on the packaging
If you still have the original packaging for your Surface and Cover or the standalone Cover, you can find the serial number on the barcode label.
For a Surface Cover that you bought separately from a Surface, the serial number barcode label will be on the box your Cover came in.
For a Touch Cover that was bundled with Surface RT, the serial number will be on the barcode label on the box together with the serial number for your Surface.