1. Tap Screen lock.
   
2. Tap Pattern.
   
3. Touch, then drag to draw the desired pattern making sure to connect at least 4 dots, then tap Continue.
   
4. Re-draw to confirm the desired unlock pattern, then tap Confirm
   
5. Enter the desired backup PIN, then tap Continue.
   
6. Confirm the desired backup PIN, then tap OK.
   
7. From the lock screen, touch, then drag to draw your set unlock pattern to unlock the device.