The serial number identifieseach individual device. It is a combination of letters and numbers that is assigned to a specific unit during the manufacturing process. This helps distinguish between different devices. Xiaomi uses the serial number to track warranty information and provide support. When you contact customer support for assistance or warranty claims, you will be asked for the serial number to verify the device’s eligibility for support or warranty services. To check the SN of the tablet, please refer to the following steps: 1. Go to[Settings]; 2. Tap[About tablet]; 3. Tap[Detailed info and specs]; 4. Tap[Status]; 5. Tap[Model]; 6. You can check [Serial number] here.