There is no official Android 8.0 (Oreo) update available for the
The OPPO F3 is a legacy device (launched 2017) that has reached End of Life (EOL) for official major OS updates. The “Version 80” update likely refers to a for ColorOS 3.0 (Android 6.0 Marshmallow) or ColorOS 5.2 (Android 7.1). Official direct OTA download links are not publicly listed by OPPO. Users must rely on OTA push, third-party firmware archives, or manual recovery flashes. oppo f3 update 80 download link
If you see websites claiming: