1. Find "Mobile network"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-4a3e224f-1907-4f9b-8062-4433f22405fd.png?width=210&height=372)
Press All.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-b0948c61-ae47-449e-819b-1e4c783499be.png?width=210&height=372)
Press More.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-b0948c61-ae47-449e-819b-1e4c783499be.png?width=210&height=372)
Press Mobile network.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-5828fd17-d2cc-4fc1-a505-e0960f3ffb9e.png?width=210&height=372)
2. Turn data roaming on or off
Press Data roaming to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-efd3997d-7015-4dc0-b5ac-d2d7b8b3fcac.png?width=210&height=372)
If you turn on the function, press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-38aa575c-ad52-4302-845a-524fcc647c6d.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-efd3997d-7015-4dc0-b5ac-d2d7b8b3fcac.png?width=210&height=372)