1. Find "Mobile networks"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-f2d36dc6-85ee-4b90-a879-5f8640901ab7.png?width=208&height=426)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-b8de8bfe-605f-4268-a984-b8e30031af21.png?width=208&height=426)
Press Connections.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-3129c1b7-66da-4778-977e-2b6e112be0fe.png?width=208&height=426)
Press Mobile networks.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-228087a1-56b8-4bb3-b8e2-612465c44a46.png?width=208&height=426)
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-f232a6ef-5845-4f9c-802f-1be06e723e87.png?width=208&height=426)
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-f232a6ef-5845-4f9c-802f-1be06e723e87.png?width=208&height=426)