If you want, tell me the phone model and country and I can provide the likely Xiaomi warranty/check page URL or next concrete steps.

If you are located in India, use the localized Xiaomi India Verify Page. Click on the tab.

Whether you are trying to calculate your remaining warranty period, verify the authenticity of a used device before buying it, or track down your original purchase timeline, discovering this information is simple. Why Check the Activation Date?

Tap on (or My Phone depending on your specific software version). Select Detailed Info and Specs . Look for the Device Activation field and tap it.