1. Find "Mobile networks"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-b4cfed90-c5fb-4fd7-99a8-51420eafc2ba.png?width=210&height=372)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-7b11306a-df98-4691-820f-468fcf486a92.png?width=210&height=372)
Press Mobile networks.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-92042c2b-1e27-4596-9019-046bb47e38d3.png?width=210&height=372)
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-00fda03f-48e9-4f76-9f97-43b36a20e8af.png?width=210&height=372)
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-00fda03f-48e9-4f76-9f97-43b36a20e8af.png?width=210&height=372)