Hi,
How to find Serial Number (SN)
1.Phones & Tablets:Setting > about phone > status, OR Dial *#06#, OR Find it in the device’s box.
2. Watches:Settings > About and swipe down to find the SN, OR Find it in the watch’s box.
3.PCs:Refer to the label on the back of the PC to view the SN, as shown in the following figure.