The serial number of your device is a unique code that the manufacturer gives to the phone. No two serial numbers are the same. If you need to search for the phone, you can search for a few digits.
A serial number is usually a combination of letters and numbers. There is no fixed length ̵
Option 1: On your device's retail packaging
Often, the packaging in which your device was shipped carries the serial number. It is usually located on the outside of the box on a sticker that also contains several barcodes, your device's IMEI number, and so on.
Option 2: Under Your Device Battery
Today, most Android devices ship with non-removable batteries. However, if you have a device with a replaceable battery, you will often find the serial number below it.
Option 3: In the system settings of your device
To find the serial number of your device in the software, go to Settings> System.
. Then go to About Phone> Status.
The serial number of your device is usually at the bottom of this screen.
If the serial number of your device is not displayed here, you may need to do a little more in the "About the phone" section. This can happen depending on the manufacturer in a slightly different place. I have to love Android.
What is the serial number used for and should it stay private?
Your serial number is generally used by the manufacturer to track the equipment inventory – mainly for repairs and warranty claims. Since it is usually printed on the outside of the box, it can be concluded that it is not terribly important that it remains completely private. There are, however, certain situations where sharing a serial number can be harmful to you later. For example, if you share your serial number and someone else uses it to submit an incorrect warranty repair for a device, you may suddenly find a phone out of warranty.
OEMs generally recommend not publishing your device's serial number – after all, it's unique to your device, and there's no reason to share it. So please do not tweet.