1 Find "Mobile networks"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7150524-f-4f1d77dc-f024-45aa-b339-7ad634e5565c.png?width=204&height=456)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7150524-f-25f267bc-a63d-48b1-8c45-e2f2852a8603.png?width=204&height=456)
Press Connections.
![](http://wmstatic.global.ssl.fastly.net/ml/7150524-f-5d163ea6-bbb5-4901-a520-041f92c013eb.png?width=204&height=456)
Press Mobile networks.
![](http://wmstatic.global.ssl.fastly.net/ml/7150524-f-f729568b-0aa4-45cb-b1a4-abc16e2d85f6.png?width=204&height=456)
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/7150524-f-8e0611ef-c88a-4913-b272-935ad6803830.png?width=204&height=456)
3 Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7150524-f-8e0611ef-c88a-4913-b272-935ad6803830.png?width=204&height=456)