Samsung SCH-I515MSAVZW - Manual (Page 101)

98
Secure your phone
Set screen lock
Depending how you use your phone, you may want to set some form of automatic screen lock to prevent
unauthorized access. If a screen lock has been set, the screen locks when your phone's display goes to
sleep.
To adjust your phone's lock settings:
1 From a Home or All Apps screen, touch the Settings icon .
2 Touch Personal > Security > Screen lock.
3 Touch the type of lock you want and follow the onscreen instructions.
If you have previously set a lock, you must enter the pattern, PIN, or password to unlock the lock settings.