1. From the home screen, drag down from the Notifications bar with two fingers to access the menu.
   
2. Tap SETTINGS.
   
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. To unlock the screen, draw the chosen unlock pattern.