1 Find "Mobile network"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-8a6dbeab-932e-4543-a802-c718f42d1127.png?width=212&height=434)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-331afb2f-e0d0-45b8-8618-96dc62de958e.png?width=212&height=434)
Press Network & Internet.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a783126a-ef0e-4902-a54d-056cdfec5d4c.png?width=212&height=434)
Press Mobile network.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-8e192c92-1ae5-47c1-9411-28a9ff7a426b.png?width=212&height=434)
2 Turn data roaming on or off
Press the indicator next to "Roaming" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-8e7749cf-1846-4363-8347-4c0ef6cb87a5.png?width=212&height=434)
If you turn on the function, press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-89f0d22c-8720-402c-a6d7-4ff418df3e94.png?width=212&height=434)
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-8e7749cf-1846-4363-8347-4c0ef6cb87a5.png?width=212&height=434)