1. To add a number to the message block list, from the Start screen, tap the Messages icon.
   
2. Touch and hold the desired number.
   
3. Tap block number....
   
4. Tap ok.
   
5. To turn call and message blocking on or off, from the Start screen, swipe left.
   
6. Scroll to, then tap Settings.
   
7. Scroll to, then tap call+SMS filter.
   
8. Tap the Block calls+SMS switch to toggle on or off.
   
9. Tap blocked numbers.
   
10. Blocked numbers will be displayed. To unblock a number, touch and hold the desired number.
    
11. Tap unblock.