1. Find "Mobile networks"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-fd528b3b-f173-49d7-a706-22d55bd1d5b5.png?width=206&height=456)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-824e36b0-1017-4727-b557-6364e754b7c2.png?width=206&height=456)
Press Connections.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-fec86eb8-710e-462e-bb9b-9964829e7345.png?width=206&height=456)
Press Mobile networks.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-c3016bc5-e97a-481e-a5f8-3f4a9bd4fd05.png?width=206&height=456)
2. Turn data roaming on or off
Press the indicator next to "Data roaming SIM 1" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-eb4e6d39-d666-462b-bf52-3cdb6b862d84.png?width=206&height=456)
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-eb4e6d39-d666-462b-bf52-3cdb6b862d84.png?width=206&height=456)