There is no official Android 8.0 Oreo update for the Oppo F3 (CPH1609). While some online sources use the keyword "update 8.0," the device officially stopped receiving major OS upgrades after Android 7.1.1 Nougat.
Step 5: Select the File
Your phone will scan the internal storage. It should detect update.zip. Tap on it. oppo f3 update 80 download link
There is no verified, safe “Update 80” download link for the OPPO F3. The device has reached its end-of-life for updates. Users seeking newer features or security should consider switching to a supported device or, if technically savvy, exploring verified custom ROMs from trusted XDA threads—never from unknown download portals. There is no official Android 8
You can download the OPPO F3 update 80 firmware from the official OPPO website or from a trusted third-party source: It should detect update