Oppo How to Turn On/Off Screen illumination for Face recognition
Oppo 1406
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Among other things, face recognition cannot work in dark environments because there is not enough light for reliable recognition, and starting with ColorOS 7 there is an "Auto brighten screen for Face unlock" feature that can help with this.
Android 11 | ColorOS 11.0
- Tap on Settings
- Tap on Password & biometrics
- Tap on Face
- Enable or disable Auto brighten screen for face recognition