The steps
- Connect to Wi-Fi and plug the device in (or keep at least 50% battery).
- Open the update screen:
Settings → About phone → HyperOS / MIUI version (tap it) → Check for updates - Download the update, then install it. The device restarts once; your apps and data stay in place.
On some Xiaomi models the entry is Settings → System update. Redmi and POCO phones use the same menus.
No update available?
Two possibilities: your device is already up to date — or it has reached its end of support and will never receive updates again. Check your exact model: