1. From the home screen, press the Right Soft key.
   
2. Select Messaging, then press the Center Nav key.
   
3. Select Settings, then press the Center Nav key.
   
4. Select General Settings, then press the Center Nav key.
   
5. To change the font size, select Message Font Size, then press the Center Nav key.
   
6. To add your signature, select Signature Settings, then press the Center Nav key.
   
7. Select Auto Insert, then press the Left soft key. to edit
   
8. Enter the desired signature, then press the Center Nav key.
   
9. Select Auto Insert, then press the Center Nav key to enable.
   
10. To change the message center number, press the Right soft key.
    
11. Select Text Messaging Settings, then press the Center Nav key.
    
12. Select Text Message Center Number, then press the Center Nav key to edit.
    
13. Enter the desired number, then press the Center Nav key.