1. Find "Mobile Data Options"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-fd20a15d-ce81-48df-a48b-5df01817ec84.png?width=210&height=454)
Press Mobile Service.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-869e79c7-95fa-47b5-896b-74432a7c4c00.png?width=210&height=454)
Press Mobile Data Options.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-d9668076-5c50-4dac-9a5e-48392b7465ea.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/7151223-f-b7b3f02d-6e87-47b2-b241-cb8298abd398.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/7151223-f-b7b3f02d-6e87-47b2-b241-cb8298abd398.png?width=210&height=454)