Keep in mind that:

• If your phone has been locked for more than 4 hours, face matching won't work until you first unlock with another method.
• Looking at your phone can unlock it, even when you don't intend to.
• Your phone can be unlocked by someone who looks a lot like you.
• Your phone can be unlocked by someone else if it’s held up to your face while your eyes are open. Keep your phone in a safe place. To prepare for unsafe situations, you can turn on lockdown.

1. Make sure you have set a screen lock on the phone.
2. Go to Settings.

3. Tap Security > Smart Lock.

   If you don't see Smart Lock, try the following:

   • Update Google Play services. In the Google Search widget on your home screen, search for “Google Play services”, then tap the app to open it.
   • Go to Settings > Security > Trust agents and enable Smart Lock.
4. Unlock your phone, then tap Trusted face.
5. Follow the onscreen instructions. Be sure to frame your entire face with the outline.

Whenever you turn on or wake the phone, it will search for your face and unlock the screen when it recognizes you.

Show your face to the lock screen.

If it doesn't recognize you, it stays locked and displays one of these icons.

Icon	How to unlock
	Use your password, PIN, or pattern
	Use the fingerprint sensor

1. Go to Settings.
2. Touch Security > Smart Lock.
3. Unlock your phone, then touch Trusted face.
4. Touch Remove trusted face.

If you're having trouble getting the phone to recognize your face:

1. Go to Settings.

2. Touch Security > Smart Lock.

3. Unlock your phone, then touch Trusted face.
4. Touch Improve face matching.
5. Follow the onscreen instructions.