- Press the Volume buttons located on the side of the device to adjust the volume.
- Reduce the volume until the Vibrate icon appears to enable Vibrate mode.
- When Vibrate mode is active, the Vibrate icon will display in the notification bar.
- Reduce the volume until the Silent icon appears to enable Silent mode.
- When Silent mode is active, the Silent icon will display in the notification bar.
- To adjust other volume settings, tap the Dropdown arrow.
- Adjust additional volume settings as desired.
- Swipe down from the notification bar and tap the Settings icon.
- To access additional volume settings, scroll to the the Sound and display section, then tap Sounds and notifications.
- Adjust settings as desired.
- Tap Ringtones to change your ringtone.
- To change the notification sound, tap Notification ringtone.
Note: To block or unblock notifications from appearing when the device is locked, go to Settings > Sound and display section > Sounds and notifications > Notifications on lock screen. -  Choose the desired sound, then tap OK.