1. Find "Mobile Data Options"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7101024-f-36cf0ddb-f9ff-4c60-9efb-21812a259822.png?width=214&height=462)
Press Mobile Service.
![](http://wmstatic.global.ssl.fastly.net/ml/7101024-f-e97dafa6-7573-4fd9-a95d-c15a95df360a.png?width=214&height=462)
Press Mobile Data Options.
![](http://wmstatic.global.ssl.fastly.net/ml/7101024-f-91dee758-2638-404c-9df8-06a4d05d1277.png?width=214&height=462)
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/7101024-f-b2f92bd9-6c49-4140-a9b8-f332aeee1bb5.png?width=214&height=462)
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/7101024-f-b2f92bd9-6c49-4140-a9b8-f332aeee1bb5.png?width=214&height=462)