This method is safer but less powerful than SP Flash Tool.
Open the Flash Tool (e.g., SP Flash Tool) as an Administrator. oppo a5s firmware flash file
: The tool will begin flashing. A green ring or "OK" sign will appear once finished. Disconnect and reboot your device. Official Alternatives This method is safer but less powerful than SP Flash Tool
If you previously rooted your Oppo A5s to install custom ROMs and now want to return to the official OxygenOS/ColorOS build (perhaps to receive official OTA updates again), flashing the stock firmware will overwrite the custom binaries and restore the device to its original, unrooted state. A green ring or "OK" sign will appear once finished
Warning: This process will wipe all user data (photos, contacts, apps). Back up if possible.
Disconnect the phone and hold the Power button to turn it on. The first boot may take 5–10 minutes. ⚠️ Important Security Note