If you cannot find a working Nougat update file, your current Marshmallow/ColorOS 3.0 is still stable. Consider custom ROMs (LineageOS 14.1) if you are an advanced user.
A green checkmark box will appear on the tool interface when the process completes successfully. Unplug your device and turn it on. Troubleshooting Common Update Issues
For a safe and reliable download, use the Oppo F3 Nougat update file from a reputable source:
User reports are mixed. While some users experience smooth performance, others report app compatibility issues and general instability. The update has been described as "a bit laggy" by some sources.
If the OTA tool fails, you can download the zip file manually and use the local update method.
If the update is not appearing automatically, users often use manual flash files. Note that manual flashing carries risks and should only be done after a full data backup
You cannot install an official OTA update on a rooted device. You must flash the full stock ROM via a PC using the SP Flash Tool or QFIL to return to stock Nougat.
Download the to your phone's internal storage or SD card. Open the File Manager app. Locate the downloaded .zip file and tap on it. Select "Upgrade Now" when prompted. Your phone will reboot and begin the update process. Method 2: Recovery Mode (Clean Installation)
Disclaimer: Flashing custom firmware or improper manual installation can damage your device. Proceed with caution and ensure you are using the correct firmware for your region and model. OPPO System Upgrade Tool | OPPO Global