Setting the screen unlock method
Face unlock
Enable your data service before using face unlock for the first time.
1. 
On the home screen, touch  then the 
All
 tab.
2. Under 
PERSONAL
, touch 
Security
.
3. Touch 
Screen lock
 > 
Face Unlock
.
4. Follow the onscreen instructions to take a photo of your face.
Your phone will use face unlock as the primary unlock method.
5. Set a secondary unlock method.
If face unlock cannot recognize you (dim light, for example), follow the onscreen 
instructions to unlock your phone using the secondary unlock method. 
To turn off face unlock, use the secondary unlock method to enter the 
Screen lock
 screen, 
and select another unlock method.
Unlocking the screen with a pattern
1. 
On the home screen, touch  then the 
All
 tab.
2. Under 
PERSONAL
, touch 
Security
.
3. Touch 
Screen lock
 > 
Pattern
.
4. Follow the onscreen instructions to set a screen unlock pattern.
 
If you draw incorrect patterns five consecutive times, the screen stops 
responding to further unlock attempts for 30 seconds. You will still be able 
to make emergency calls during this time.
Unlocking the screen with a PIN
1. 
On the home screen, touch  then the 
All
 tab.
2. Under 
PERSONAL
, touch 
Security
.
3. Touch 
Screen lock
 > 
PIN
.
4. Follow the onscreen instructions to set a screen unlock PIN.
After a screen unlock PIN is set, you will have to enter it every time you want to unlock the 
phone screen.