If you see no date, your phone was never properly activated. That can be a red flag for a stolen or pre-production unit.

The official Xiaomi Community app contains tools for device verification that are user-friendly and do not require a separate computer.

Enter your or Serial Number (S/N) and the verification code.

Enter your or Serial Number (S/N) and the required verification code.

: Type in your IMEI or S/N (Serial Number) and the provided security code. View results

Method A: Official Xiaomi Product Authentication (Recommended)

If you have the phone in hand, you can find clues within the system settings, though it may not show the exact second of activation.