1. Find "Mobile networks"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-9f080bf9-dfcd-4cf3-9881-0b23c891ca45.png?width=206&height=368)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-ccf9b0e9-11e3-4df5-8975-892f3e871d72.png?width=206&height=368)
Press More.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-43a2a0e9-a2ef-48a3-ab3c-5efb02ddc2a5.png?width=206&height=368)
Press Mobile networks.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-f9bbb4d4-31d9-4f53-b0d9-fd9d2507f163.png?width=206&height=368)
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-88dceddb-a41c-4a95-b15d-4c807c4ab83e.png?width=206&height=368)
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-88dceddb-a41c-4a95-b15d-4c807c4ab83e.png?width=206&height=368)