Oppo
Set Up Face Recognition Unlock auf Oppo
On most Oppo phones running ColorOS, face recognition works as an alternative to your PIN or pattern, not a replacement for it. The system always needs a fallback password, because face data alone is not considered secure enough for encryption and app protection features like the private safe.
That is why the option to add a face only becomes active once a password already exists. If you skip that step, the menu still shows the option, but tapping it either loops back to a password setup screen or does nothing visible.
To set it up, go to Settings ➔ Password & biometrics. Set a screen lock password if you have not done so already, then tap Add face and follow the on-screen instructions to scan your face in good lighting.
Once enrolled, face recognition can unlock the screen, confirm app lock access, and open the private safe. In low light or with a covered face, the system falls back to your password automatically, so unlocking never gets blocked completely.
If you share your device with family members or need stronger security for banking apps, a fingerprint or password alone is often the safer choice instead of face recognition.