1. Find "Mobile networks"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-b6fb8fe9-b1f6-400f-a590-dacd7a666614.png?width=198&height=440)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-7a799c1d-4c6b-4308-b02a-ecf3fc0b2bee.png?width=198&height=440)
Press Connections.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-07cd3922-12f6-41ac-8cdb-4ec2d09b8c4f.png?width=198&height=440)
Press Mobile networks.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a0d08143-a11d-438f-a243-9ee4b5d2070a.png?width=198&height=440)
2. Turn data roaming on or off
Press the indicator next to "Data roaming ‹SIM›" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-ddf6eeec-ff67-4b45-a835-2f64bde0d465.png?width=198&height=440)
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-ddf6eeec-ff67-4b45-a835-2f64bde0d465.png?width=198&height=440)