The steps
- Connect to Wi-Fi and plug the device in (or keep at least 50% battery).
- Open the update screen:
Settings → System (or About device) → Software update - Download the update, then install it. The device restarts once; your apps and data stay in place.
OnePlus staggers rollouts: the same update can reach two identical phones weeks apart.
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: