1. Find "Mobile network"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-716aed74-41f0-4177-9acb-c2dd54c295b1.png?width=206&height=368)
Press More.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-86f08845-3595-4ca0-bb14-7bb86435860a.png?width=206&height=368)
Press Mobile network.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-84e56f4b-1f7f-4413-b03a-1966bc6bf1c6.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-db61b7ec-1c6a-4f87-b23f-8eb3b74fca06.png?width=206&height=368)
If you turn on the function, press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-4c6f1ff4-1303-479d-b9d7-1bf78af79a9b.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-db61b7ec-1c6a-4f87-b23f-8eb3b74fca06.png?width=206&height=368)