1. Find "Mobile networks"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-8a659b78-ec94-4757-baf0-0c9a92312e5c.png?width=202&height=418)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-aa45eaf9-c8c6-4bf7-9dc1-893c103af5ea.png?width=202&height=418)
Press Connections.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-d7a16ed1-1ddc-4eed-abff-fb76fd69b435.png?width=202&height=418)
Press Mobile networks.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-7fbc7176-cc0e-4049-ab12-a828d289d2ae.png?width=202&height=418)
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-fb00959d-ad5e-45e4-94f4-443972e31599.png?width=202&height=418)
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-fb00959d-ad5e-45e4-94f4-443972e31599.png?width=202&height=418)