Samsung SM-N960W User Manual page 256

Settings
Registering irises
The device can save the iris data of one person only. You cannot register more than
one set of irises.
1
On the Settings screen, tap Biometrics and security → Iris Scanner.
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.
To register only one iris of your eyes, tap Register just one 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.
25-35 cm
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