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the phone adjust the screen brightness automatically, or drag the 
slider to adjust the brightness manually. 
Protecting Your Phone With Screen 
Locks 
You can protect your phone by creating a screen lock. When it is 
enabled, you need to touch and hold certain icon, look at the front 
camera, draw a pattern or enter a numeric PIN or a password to 
unlock the phone’s screen and keys. 
1.Touch the Home Key > 
  > Settings > Security. 
2.Touch Screen lock. 
3.Touch Pattern, PIN or Password. 
  If you touch Pattern, you’re guided to create a pattern you 
must draw to unlock the screen. The first time you do this, 
a short tutorial about creating an unlock pattern appears. 
Then you’re prompted to draw and redraw your own 
pattern. 
  If you touch PIN or Password, you’re prompted to set a 
numeric PIN or a password you must enter to unlock your 
screen.   
  NOTE:   
Screen lock options are listed in the approximate order of the 
strength of their security, starting with None, which provide no 
security. A pattern provides minimal security, although it can be 
more convenient than the stronger options.