1 Find "Mobile networks"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-dadd74e0-d502-4515-a803-0b1f0188f4a9.png?width=206&height=456)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-757fc35f-f21a-4cb4-860a-e9c9f3bef234.png?width=206&height=456)
Press Connections.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-8cb2b8e0-02e9-4874-ad55-b21b1835c20e.png?width=206&height=456)
Press Mobile networks.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-e54c9de7-e8de-4627-b60d-eee235520ac2.png?width=206&height=456)
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-2d961459-2209-40c7-89d3-abf03e02319b.png?width=206&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/7140723-f-2d961459-2209-40c7-89d3-abf03e02319b.png?width=206&height=456)