1. From the home screen, tap Messaging.
   
2. Tap the Menu icon.
   
3. Tap Settings.
   
4. Scroll to, then tap Spam filter.
   
5. To enable or disable message blocking, tap the Spam filter switch.
   
6. To block or unblock specific numbers, tap Add to spam numbers.
   
7. Tap the Add icon to block a number or tap and hold an entry to remove it from the list.
   
8. This message blocking feature may not stop your phone from sending or receiving messages via third-party apps installed on your device. Please contact the developer for assistance with these applications.