If you want, I can:
To ensure the update works, you must use the correct model-specific firmware. OPPO F3 (CPH1609) Version: Android 7.1.1 Nougat (ColorOS 3.1) download file firmware update oppo f3 nougat work
To upgrade your Oppo F3 to Nougat, you can use the following methods: Official OTA Update (Settings) Software Update Tap to check for available updates. If available, download and follow the prompts to install. If you want, I can: To ensure the
Dangling cache or incompatible data from Android 6.0. Fix: Boot back into Recovery (Volume Down + Power) and perform a Factory Reset . Warning: This erases all data. After a reset, Nougat will load perfectly. If you want
Turn off your phone, then connect it to the PC while holding the volume buttons to trigger the flash.