1. From the home screen, press the Volume keys located on the side of the device to adjust ringtone volume.
   
2. Press and hold the 'Q' key to toggle between the General sound profile and the Vibration profile.
   
3. To enable the Silent profile, press the Right soft key.
   
4. Scroll to the 'Profiles' icon, then press the Center nav key.
   
5. Scroll to 'Silence', then press the Center nav key to activate.
   
6. When the Silent profile is active, the Silent mode icon will display in the notification bar.
   
7. To adjust additional settings, scroll to the desired profile, then press the Left soft key.
   
8. Select 'Customize', then press the Center nav key.