Samsung Galaxy S8 - Manual (Page 45)

Learn About Your Device 38
Note: The Iris scanner is not intended to be used as a
medical device and the biometric data collected and
stored locally by the mechanism is not intended to be
used for any diagnostic, therapeutic, or preventative
purposes. Please follow all instructions for use of this
feature.
For best results, remove eyeglasses and sunglasses.
Do not use the Iris scanner in bright sunlight or areas
with excessive reflected light (for example, by the pool
or seashore). Do not use the Iris scanner in low light.
Look straight at the device (not up, down or sideways),
and hold your head still for the scan. Tinted contact
lenses and surgically repaired or replaced iris lenses
may interfere with operation of the Iris scanner. Do not
walk or operate a vehicle while using the Iris scanner.
For more information, refer to the online support
content or visit samsung.com/us/irisscanner.
Register Irises
To use your eyes to unlock your device, you must set
a pattern, PIN, or password. For best results, perform
the set up process indoors, and remove your glasses or
contact lenses.
Note: To register just one of your eyes, tap the link on
the setup screen to register one iris.
To register your irises:
1. From a Home screen, swipe up to access Apps.
2. Tap Settings > Lock screen and security >
Iris scanner.
3. Follow the prompts to register your irises.