1. From the home screen, swipe down from the Notification bar.
   
2. Tap the Settings icon.
   
3. Scroll to, then tap Security.
   
4. Tap Screen lock.
   
5. Tap Pattern.
   
6. Draw the desired unlock pattern.
   
7. Tap CONTINUE.
   
8. Re-draw the desired unlock pattern to confirm.
   
9. Tap CONFIRM.
   
10. Tap the desired option, then tap DONE.
    
11. To unlock your device, swipe up at the Lock screen.
    
12. Draw the current unlock pattern.