1. Press the Volume keys located on the side of the device to adjust the volume.
   
2. Reduce the volume until the Vibrate icon appears to enable Vibrate mode.
   
3. When Vibrate mode is active, the Vibrate icon will display in the notification bar.
   
4. Reduce the volume until the Silent icon appears to enable Silent mode.
   Note: Once you are in Vibrate mode, you have to release the Volume down button, and then tap it to get to Silent mode.
   
5. When Silent mode is enabled, the Silent icon will display in the notification bar.
   
6. Swipe down from the top of the screen, and tap the Settings icon to access additional volume settings.
   
7. Tap Sounds and notifications.
   
8. To change the ringtone, tap Ringtones.
   
9. Tap the Desired option, and then tap OK.
   Note: For steps to assign a ringtone to a contact, please see the 'Contacts' tutorial.
   
10. To change notification alerts, tap the Desired option.