Recommendation: For best security and app compatibility, update the device to Google's OS release 13 (One UI 5) where available. If you loved this informative article and you would want to receive details relating to 1xbet app download for android assure visit our own internet site. The handset shipped with Google release 10 and received official major upgrades to releases 11, 12 and 13; carriers and region-specific builds can delay OTA availability, so check the Software update screen if an automatic prompt hasn't arrived.

Concrete data: Factory firmware: Google release 10 with One UI 2.x. Major public OTAs: release 11 → One UI 3.x, release 12 → One UI 4.x, release 13 → One UI 5.x. Security-patch cadence moved from monthly in the initial years to less frequent rollouts later; precise patch level depends on the market and carrier build.

Before applying an OTA: back up user data, confirm battery ≥50%, connect to stable Wi‑Fi, and free 4–6 GB of internal storage for the installer. If the update is not visible in Settings → Software update → Download and install, try the vendor desktop updater (Smart Switch) or consult your carrier's support pages. If official updates stop at release 13 and you need a newer Google release, evaluate verified community firmware for your exact model and bootloader status before flashing.

Stock Android Version at Launch

Install the first major system upgrade (platform 11) within three months and enable automatic security updates.

Factory firmware shipped based on Google's mobile platform 10 with One UI 2.0. Commercial release occurred in December 2019; initial security patch level on boxed units was December 2019.

To verify: open Settings > About phone > Software information to read the build string and security patch date. If flashing factory images, obtain official files from the manufacturer's support portal, match the exact model code, and follow the vendor flashing guide to avoid bricking or warranty issues.

If the handset still runs the original platform build, prioritize over-the-air updates for monthly patches rather than custom releases; keep a full backup before any major system change and confirm bootloader unlock status before proceeding with unofficial software.

Original Android release and One UI shipped

Recommendation: Preserve the factory firmware package and copy the shipped One UI build ID from Settings → About phone → Software information before applying any updates or custom software; perform a full backup with the manufacturer's backup tool or a booted recovery image so you can restore the stock state if anything goes wrong.

Early production units shipped with the One UI 2.0 family; some later batches and certain carrier-branded units left the factory with One UI 2.1. The 2.1 build introduced incremental camera tweaks, UI polish to quick settings and notifications, and several small stability fixes compared with initial 2.0 releases.

Regional and carrier build codes (CSC) determine which One UI minor release and preinstalled packages arrive on a device. Check the CSC and build string in Download mode or the Software information screen and record both values; flashing firmware for a different CSC can cause network or modem incompatibilities and will not replicate the original out-of-box environment.

To identify the shipped firmware precisely, note the full build string shown in Software information and the security patch date. Keep a copy of the original AP/BL/CP files (or full factory package) obtained from the official support channel for that exact build string so you can recover the original firmware if needed.

Be aware that unlocking the bootloader or flashing unsigned images will trip the hardware-backed security flag used by banking and DRM apps and is detectable by service centers; warranty and secure-app functionality may be affected. If you plan to modify the device, export a full userdata backup, save the original firmware files, and verify compatibility of any custom package against the recorded CSC and build ID.

OTA updates were delivered incrementally by region and carrier; if you need to remain on the factory UI for app compatibility or enterprise requirements, avoid applying OTAs until you confirm the update build in the official changelog matches your region’s CSC and backup is complete.