1. From the home screen, tap the Messaging icon.
   
2. Tap the Menu icon.
   
3. Tap settings.
   
4. To change the SMS center number, tap the SMS center number field.
   
5. Enter the desired number.
   
6. Tap save.
   
7. To edit the emergency alert settings, tap emergency alerts.
   
8. Change the settings as desired.
   
9. To change the messaging notification settings, tap notifications+actions for the settings menu.
   
10. Tap Messaging.
    
11. Change the settings as desired.