1 Find "Mobile network"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6931f341-63a4-4506-9e03-fdac9749ff73.png?width=206&height=450)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-f4b974ae-81d7-4050-a19f-8679a7cce2ab.png?width=206&height=450)
Press Network and Internet.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-390e43a4-4e68-4fa9-94d0-c3893b777fa4.png?width=206&height=450)
Press Mobile network.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-7f35e701-8efc-4a01-9362-056d67608c3b.png?width=206&height=450)
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-fff8424e-0e9c-4a00-8454-41dc1499b56c.png?width=206&height=450)
If you turn on the function, press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-9c89a44f-4f4d-4f46-9fae-a730214b94fc.png?width=206&height=450)
3 Return to the home screen
Slide your finger upwards starting from the bottom of the screen to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-fff8424e-0e9c-4a00-8454-41dc1499b56c.png?width=206&height=450)