1 Find "Mobile network"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a1845d8c-4ad5-42e4-b086-17ceeb9337ad.png?width=214&height=380)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-0fe06809-4a1a-4447-94a8-afd643e6354f.png?width=214&height=380)
Press Network & Internet.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-9c5fda40-2fb5-44b8-931a-7337e40db3ae.png?width=214&height=380)
Press Mobile network.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-3f19754f-f1f4-425e-ba8f-fb949d2eeaa8.png?width=214&height=380)
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-3665eb92-9d48-40e2-bf6e-7fcbe022f222.png?width=214&height=380)
If you turn on data roaming, press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6e34ffab-ee4a-4d79-856d-6a63b2b83a9b.png?width=214&height=380)
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-3665eb92-9d48-40e2-bf6e-7fcbe022f222.png?width=214&height=380)