1 Find "Mobile network"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-1507a358-89e7-4c93-b13b-a34e08162406.png?width=204&height=408)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6384514d-aa8b-477d-89c5-29b25b6fe56e.png?width=204&height=408)
Press Network & Internet.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-740fb224-6684-4bc4-a9c7-ec61e67c8b77.png?width=204&height=408)
Press Mobile network.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-93e739e5-1a87-4c52-862f-77c1af61ecaa.png?width=204&height=408)
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-3938ecdd-9c08-43f8-be7d-4818bb1455c4.png?width=204&height=408)
If you turn on the function, press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-f1ffc6ff-3b9c-4faa-bd0d-384f8511caca.png?width=204&height=408)
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-3938ecdd-9c08-43f8-be7d-4818bb1455c4.png?width=204&height=408)