The most reliable way to check your activation date is through the official Xiaomi Product Authentication portal. Find your (dial *#06# or check the box). Go to the Xiaomi Official Web Portal. Enter your IMEI or Serial Number (SN). Input the verification CAPTCHA code.
Small discrepancies are normal. The "activation" often triggers when the phone first connects to Mi servers via Wi-Fi or cellular data, not necessarily when you swiped your credit card. Can I check the activation date of a second-hand phone? how to check activation date of xiaomi phone top
Go to Settings > About Phone > Detailed info and specs > Status . Here you can see the "Uptime," which resets on reboot but helps verify recent activity. The most reliable way to check your activation
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. Enter your IMEI or Serial Number (SN)