1. Find "Mobile network"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-1108d468-5a18-4fdb-abd7-038619c49ae9.png?width=214&height=380)
Press More.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a8bcc7b6-e962-48e9-8c54-f9bd881128e0.png?width=214&height=380)
Press Mobile network.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-3de380f1-6ede-46f6-b4b4-d4100bb900af.png?width=214&height=380)
2. Turn data roaming on or off
Press Data roaming to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-36385c20-dd8c-40a2-acbf-a739af943741.png?width=214&height=380)
If you turn on the function, press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-f4ca2194-51b3-4490-baf0-37b5ff0a8baf.png?width=214&height=380)
3. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-36385c20-dd8c-40a2-acbf-a739af943741.png?width=214&height=380)