1 Find "Mobile networks"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-ca77412a-5570-4350-bb3e-26e347e2a90a.png?width=214&height=450)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-43bb1c83-8302-467f-abb9-7573ee741e0e.png?width=214&height=450)
Press Connections.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-8d08079a-130c-4a8b-b3f0-8e0e562e02a4.png?width=214&height=450)
Press Mobile networks.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-d1707cf9-8ebf-49f2-a93a-4f02b9e536a9.png?width=214&height=450)
2 Turn data roaming on or off
Press the indicator next to "Data roaming" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-92adb1ef-f5af-4193-8c8e-c81f5f6011dd.png?width=214&height=450)
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-92adb1ef-f5af-4193-8c8e-c81f5f6011dd.png?width=214&height=450)