Turning on or off airplane mode
Your phone's signal reception or transmission may interfere with an airplane's flight 
system. Power off your phone or switch to airplane mode when you are on a flight.
In airplane mode, your phone's wireless features are disabled, but you can still listen to 
music or play games.
Use either of the following methods to turn on or off 
Airplane mode
:
• Press and hold the power button. From the displayed option menu, choose 
Airplane mode
.
• On the home screen, touch  then the 
All
 tab. Under 
WIRELESS & 
NETWORKS
, touch 
Airplane mode
.
When airplane mode is on,  appears in the status bar.
Tone settings
1. 
On the home screen, touch  then the 
All
 tab.
2. Under 
DEVICE
, touch 
Sound
.
3. From the settings screen, you can: 
• Touch 
Volume
 and drag the sliders to set the volume of music, ringtone, 
message notification tone, and more.
• Touch 
Vibration
 to set whether your phone vibrates when you have an 
incoming call, message, email, event, and more.
• Touch 
Silent mode
 to turn silent mode on or off.
• Touch 
Phone ringtone
 to select a ringtone.
• Touch 
Notification tone
 to select a tone for messages, emails, events, and 
more.
• Touch 
Dolby Digital Plus Settings
 to turn the Dolby sound effect on or off.
• Touch 
System
 to turn the notification tone or vibration on or off when you 
touch or lock the screen, take a screenshot, dial a number, and more.