Are you trying to check this to or to check a used phone's authenticity ?
Most Xiaomi and Redmi phones allow you to view activation details directly in the system settings. Open the app on your phone. Tap on About phone (or My phone ). Select Detailed info and specs (or All specs ). how to check activation date of xiaomi phone top
Xiaomi provides an official global portal to verify purchase information and activation status. Visit the Xiaomi Product Authentication page. Select the tab. Enter your IMEI or S/N and the provided verification code. Click Verify . Are you trying to check this to or