1. To turn message block on, from the home screen, tap Messages.
   
2. Tap MORE.
   
3. Tap Settings.
   
4. Tap Block messages.
   
5. Tap Block list.
   
6. Enter the Desired number in the Phone number field and tap the Add icon to add the entered number to the message block list.
   
7. Tap the Minus icon to delete a number from the message block list.