Unless kept unlocked automatically, your phone locks the screen five seconds after the screen turns off.

To increase or decrease the amount of time before automatically locking the screen:

1. Go to Settings > Security & location.
2. Next to Screen lock touch .
3. Touch Automatically lock, then select a duration.

You can manually lock your phone by pressing the Power button. If you want the Power button to turn off the screen but not lock it:

1. Go to Settings > Security & location.
2. Next to Screen lock touch .
3. Touch Power button instantly locks off .

After the screen turns off, your phone will still lock after the time set for the automatic lock.

You can hide your password or pattern to prevent others from viewing it when you unlock your screen.

To hide passwords:

1. Go to Settings > Security & location > Advanced.
2. Turn Show passwords off .

To hide patterns (if you're using a pattern screen lock):

1. Go to Settings > Security & location.
2. Touch .
3. Turn Make pattern visible off .