Progressing
While official Android 11 is impossible, the Android modding community (XDA Developers) has breathed new life into the OPPO F1s. Thanks to and GSI (Generic System Image) , certain custom ROMs based on Android 11 (and even Android 12/13) can run on the F1s.
The Oppo F1s Android 11 update is available for download via the device's built-in software update feature or through the Oppo website. Here are the steps to download and install the update:
The OPPO F1s was released in 2016 running Android 5.1 Lollipop. According to OPPO Support , the device officially only received an upgrade to Android 6.0 Marshmallow (ColorOS 3) before reaching its end-of-life for software maintenance. Can I Still Get Android 11?
If you see sites offering "Android 11 official firmware" for this specific model, they are likely misleading or providing , which are unofficial and require technical expertise to install. Official Update Path (Max Support)
Many custom ROMs for this specific hardware lack basic drivers, meaning features like the camera or fingerprint sensor may not work.