Settings175Iris recognitionThe iris recognition feature uses the unique characteristics of your irises, such as their shapeand pattern, to strengthen the security of your device. Your iris data can be used for variousauthentication purposes. After registering your irises, you can set the device to use your irisesfor the following features:• Samsung Pass (Samsung account verification and web sign-in)• Screen lock• Secure Folder• This feature may not be available depending on the region or service provider.• If you use your iris as a screen lock method, your irises cannot be used to unlockthe screen for the first time after turning on the device. To use the device, you mustunlock the screen using the pattern, PIN, or password you set when registering theirises. Be careful not to forget your pattern, PIN, or password.• If your irises are not recognised, unlock the device using the pattern, PIN, orpassword you set when registering the irises, and then re-register your irises. Ifyour pattern, PIN, or password is forgotten, you will not be able to use the device ifyou do not reset it. Samsung is not responsible for any data loss or inconveniencecaused by forgotten unlock codes.• If you change the screen lock method to Swipe or None, which are not secure, allof your biometric data will be deleted. If you want to use your biometric data inapps or features, such as Samsung Pass, you must register your biometric dataagain.