1 Find "Mobile networks"
Slide two fingers downwards starting from the top the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-1782f7ec-5f5a-4f39-b44c-529c0e04a669.png?width=210&height=376)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-55ee562f-b73f-4924-97f8-3f2005e1af6a.png?width=210&height=376)
Press More.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-cc536cda-9568-4275-8155-de38adf69ac6.png?width=210&height=376)
Press Mobile networks.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-c79994be-60a8-41e7-b856-950f85f919ef.png?width=210&height=376)
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-3d523ab0-4c05-413c-bb80-fbb077782c2f.png?width=210&height=376)
If you turn on data roaming, press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-883aac60-756a-4663-834e-47f01b2f6302.png?width=210&height=376)
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-3d523ab0-4c05-413c-bb80-fbb077782c2f.png?width=210&height=376)