The OPPO F3 (CPH1609) was originally released in 2017 running (ColorOS 3.0). While a limited official update to Android 7.1.1 Nougat was released in 2018, it is not widely available as an Over-the-Air (OTA) update for all regions. 1. Official Software Update Method
Hold the buttons until the Oppo logo appears to enter recovery mode. Select your language, then tap Install from storage device . oppo f3 nougat 711 update download patched