Samsung Galaxy S9 User Manual page 217

Settings
3
Read the on-screen instructions and tap CONTINUE.
To register only one iris of your eyes, tap Register just 1 iris.
4
Hold the device with the screen facing towards you and look at the screen.
5
Position your eyes inside the circles on the screen and open your eyes wide.
The iris recognition camera will scan your irises.
When an iris unlock screen appears, tap TURN ON to use your irises to unlock the screen.
Deleting registered iris data
You can delete iris data that you have registered.
1
On the Settings screen, tap Lock screen and security → Iris Scanner.
2
Unlock the screen using the preset screen lock method.
3
Tap Remove iris data.
Once the registered iris data has been deleted, all the related features will also be
deactivated.
25-35 cm
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