1. From the home screen, tap the Text Messages.
   
2. Tap More.
   
3. Tap Settings.
   
4. To change the Notification settings, tap Display and Actions.
   
5. Scroll to, then tap Interactive Lock Screen Notification Settings.
   
6. Tap the Lock Screen Notifications switch to turn it on or off.
   
7. To view the message center number, from the settings menu, scroll to, tap Text Messages.
   
8. Tap Advanced.
   
9. The message center number will be displayed in the Service Center Address field.
   
10. To change the Emergency alert settings, from the settings menu, tap Emergency Alerts.
    
11. Tap to adjust the settings as desired.