Out-of-the-box software: the handset launched with Google's mobile operating system release 10 paired with One UI 2.x. The manufacturer issued a major upgrade to release 11 (One UI 3.1) for most regional variants; security patches continued on a monthly or quarterly cadence afterward. Check Settings → About phone → Software information to confirm the exact build on your unit. How to get the update: use Settings → Software update → Download and install over a stable Wi‑Fi connection. Recommended...