Samsung Galaxy S9 User Manual page 211

Settings
For better face and iris recognition
The phone may not recognise your irises or face when:
• s omething prevents a good view of your face or eyes (e.g. glasses, contact lenses, hat, low
eyelids, recent eye surgery, disease, dirt, damage to the camera, or excessive movement).
Registering irises and face
1
On the Settings screen, tap Lock screen and security → Intelligent Scan.
2
Unlock the screen using the preset screen lock method.
If you have not set a screen lock method, create one.
3
Read the on-screen instructions and tap CONTINUE.
4
Register your face and irises.
For more information, refer to
When an intelligent scan unlock screen appears, tap TURN ON to use your face and irises
to unlock the screen.
Deleting registered face and iris data
You can delete face and iris data that you have registered.
1
On the Settings screen, tap Lock screen and security → Intelligent Scan.
2
Unlock the screen using the preset screen lock method.
3
Tap Remove face and iris data.
Once the registered face and iris data has been deleted, all the related features will also
be deactivated.
Face recognition and
211
Iris recognition.