52 Management
Find it: Menu  >
System settings
 >
Data usage
 
>Menu  >
Restrict background data
.
Caution: Restricting all background data can cause 
some features to stop working altogether.
Wireless manager
Find it: Menu  >
System settings
, then go to the 
WIRELESS & NETWORKS
 section
Manage all your wireless connections: Wi-Fi, 
Bluetooth™, mobile data, airplane mode, and mobile 
hotspot.
Airplane mode
Use airplane mode to turn all your wireless connections 
off—useful when flying. Press and hold the Power key 
>
Airplane mode
.
Note: When you select airplane mode, all wireless 
services are disabled. You can then turn Wi-Fi and/or 
Bluetooth back on, if permitted by your airline. Other 
wireless voice and data services (such as calls and text 
messages) remain off in airplane mode. Emergency calls 
to your region's emergency number can still be made.
Network
You should not need to change any network settings. 
Contact your service provider for help.
Touch Menu  >
System settings
 >
More...
 >
Mobile 
networks
 to see network settings options.