Where To Check Microsoft Surface Device Serial Number? Find The Serial Number On The Physical Device Itself 1.Shut down your Surface Pro device. 2. Flip the device over, so the backside with the kickstand is facing upwards. 3. Look for a sticker on the lower portion of the device, near the kickstand hinge. 4. On the sticker, you should see the serial number labeled as “Serial Number” or “S/N.”