If you logged into a Google account during setup, visit the Google Find My Device webpage. Click on your specific Xiaomi model, and it will often show the date the device was first registered to your Google account.
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. how to check activation date of xiaomi phone top
on your phone's dialer or check the back of the original packaging. Visit the portal : Go to the Xiaomi Product Authentication Enter details If you logged into a Google account during