Short answer: This handset ships with Google’s mobile operating system 11 layered with the manufacturer’s lightweight “R Edition” interface; install the official Google mobile OS 12 update when it becomes available for your exact model and keep automatic updates enabled over Wi‑Fi to receive security patches promptly.
How to verify and update: Open Settings → About phone → Software information to view the base release and build number. Check Settings → Software update → Download and install for official OTA packages. Before applying a major release, ensure Wi‑Fi is active, battery level is ≥50%, and at least 3 GB of free internal storage is available; create a full backup (cloud or local) and confirm Google account sync.
Recommended update policy actions: confirm eligibility on the manufacturer’s support page using your model number or IMEI; if official documentation lists one major OS upgrade and two years of security maintenance for this product family, plan updates accordingly. For stability, wait 2–4 weeks after the regional rollout before installing a major system upgrade; enroll in early-access programs only via the vendor’s official channels.
Troubleshooting and safety tips: if an OTA fails, reboot, free additional storage (target 5 GB), clear the system update cache, then retry. Only use official recovery images or the vendor’s recovery tool for manual installs. If post-update instability occurs, perform a factory reset after backing up data. Keep the bootloader locked to preserve OTA eligibility and warranty coverage.
Stock Android version shipped with Realme C35
Out of the box the handset uses Google’s mobile OS 11 (API level 30) paired with the manufacturer’s custom user interface; confirm the exact build via Settings → About phone.
To verify: open Settings → About phone → Software information, note the build number and the Security patch level date. Record both when you first power on the device – they are required for support or warranty claims.
Before installing any OTA update: back up apps and media to cloud or a PC, ensure battery >50% and a stable Wi‑Fi connection, and keep a local copy of IMEI and current firmware build. If an update fails, you’ll need those backups and the original build to recover cleanly.
Region and carrier variants can ship with different builds and rollout schedules; check the manufacturer’s official support page or the carrier portal using your IMEI to confirm whether your unit matches the global retail firmware.
If you want to track future upgrades, enable Settings → Software Update → Auto-download via Wi‑Fi and regularly check the support site for security patch announcements. For advanced changes (unlocking bootloader, custom firmware), follow vendor instructions precisely and accept that warranty and stability risks apply.
Factory Android OS number
Copy the factory build number and security patch level from Settings → About phone immediately after unboxing; keep a screenshot and text record for OTA eligibility, support requests and firmware flashes.
To retrieve via USB: enable Developer options by tapping Build number seven times, enable USB debugging, then run adb shell getprop ro.build.display.id and adb shell getprop ro.build.fingerprint. Also capture adb shell getprop ro.build.version.release and adb shell getprop ro.build.version.sdk for the release identifiers that firmware packages reference.
Fastboot access provides bootloader-side identifiers: use fastboot getvar all to confirm product name, bootloader version and baseband tag. Match these values to the official firmware file name before flashing; mismatches cause boot failures or warranty issues.
Factory build strings follow a pattern: model_release_buildcode.patch (for example, MACHINE_MAJOR_X.Y). Use the full display ID and fingerprint when searching for official images or when opening a support ticket; do not rely on shorthand release numbers alone.
If the recorded build or fingerprint differs from the official download listing, stop and contact vendor support or the retailer rather than attempting manual installation. Store the build record with IMEI and purchase proof for any later service interactions.
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