§ Hold your phone at eye level and at a distance of 20 to 30 cm (8 to 12 in) from your face.
§ Make sure your phone is not tilted sideways while scanning.
§ Some screen protectors and cases might interfere with Iris Unlock.
§ Keep your eyes wide open and your phone still during scanning.
Biometric unlocking methods such as Iris Unlock may be less secure. Your phone could still be
unlocked by someone with similar biometrics. If you have any concerns, use other more secure
authentication methods such as a screen lock pattern, PIN, or password.
Setting up Iris Unlock
1. From the Home screen, swipe up and then tap Settings Iris Unlock.
2. If you haven't already set up a screen lock, you'll be asked to choose and set up a backup
pattern, PIN, or password for unlocking your phone. See Setting a screen lock on page 32.
3. If prompted, choose how you want to show notification content when your phone is locked,
and then tap Done.
4. Tap Register irises.
5. Tap Next and follow the onscreen instructions to scan your irises.
6. Tap Turn on to enable Iris Unlock.
By default, your phone automatically unlocks the screen when it recognizes your irises. If you
prefer to swipe from the lock screen before the phone unlocks, tap Settings Iris Unlock, and
then turn off the Iris Unlock without swiping option.
Unlocking your phone with Iris Unlock
You need to be on the lock screen to use Iris Unlock to unlock your phone.
1. If the screen is off, press the POWER button to wake up the screen.
You'll see the icon on the lock screen.
2. Hold your phone in portrait orientation at eye level and stare at the Iris Unlock camera until
the phone unlocks. To find out where this camera is located, see HTC U19e overview on page
13.
§ If Iris Unlock is successful, you'll see the blue icon then your phone unlocks.
§ If Iris Unlock is unsuccessful, you'll see the red icon. Tap it to try Iris Unlock again.
If
Iris Unlock without swiping is turned off in Settings, you'll need to swipe on the lock screen
after Iris Unlock is successful to unlock your phone.
If Iris Unlock is unsuccessful, swipe up and you'll see a similar interface as the iris data
registration appear on the screen. Just point your phone so your eyes are inside the onscreen
circles to unlock the phone.
34 Security
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