1 Find "Mobile network"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-c202aa1f-ddd6-44f5-95d9-bd81e8225627.png?width=210&height=454)
Press Wireless & networks.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6a6a9b0d-d125-485f-8294-f87303567112.png?width=210&height=454)
Press Mobile network.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-7fce6432-f8f3-4895-ad1c-2a8f55fd71ec.png?width=210&height=454)
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-bbf1b80c-6fe2-4034-8a16-6d539981eb7f.png?width=210&height=454)
If you turn on the function, press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a98e5716-a781-42ba-a24b-4c5404abf728.png?width=210&height=454)
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-bbf1b80c-6fe2-4034-8a16-6d539981eb7f.png?width=210&height=454)