Update — Oppo F1s |work|

Even if you stay on stock Android 6.0:

If you want Android 9, 10, or even 11 on your Oppo F1s, you need to unlock the bootloader and install a custom ROM. update oppo f1s

| If you stay on Stock ColorOS | If you install Custom ROM | |-------------------------------|----------------------------| | - Disable unused apps (Settings > App Management) | - Install a minimal GApps package (pico/nano) | | - Use a modern browser (Kiwi, Firefox) instead of built-in | - Enable privacy controls (many ROMs have them) | | - Install a firewall like NetGuard to block background data | - Enjoy split-screen, dark mode, and better RAM management | Even if you stay on stock Android 6

Your phone will reboot to complete the process. Ensure you have at least and a stable Wi-Fi connection. Manual Update via Recovery Mode Manual Update via Recovery Mode The Oppo F1s

The Oppo F1s originally ran Android 5.1 (Lollipop) and officially received an upgrade to Android 6.0 (Marshmallow) with ColorOS 3. OPPO India Community OPPO F1s getting Android 6.0 Marshmallow update - YugaTech

The device will automatically check for available versions. If an update is found, select and follow the on-screen instructions.