1 Find "Mobile networks"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-de2ee7ab-019a-4b33-ae6f-cffa68bae82a.png?width=212&height=376)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-d2b7bd71-9c67-47e3-8501-fc9c2211c00c.png?width=212&height=376)
Press Connections.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6024ed99-371f-4b96-9f73-251b14d60e0d.png?width=212&height=376)
Press Mobile networks.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-78e595c0-ca8d-488a-a0a5-cb346ca111cb.png?width=212&height=376)
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-57b85f32-2923-4a1d-8953-3e8503a59d98.png?width=212&height=376)
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-57b85f32-2923-4a1d-8953-3e8503a59d98.png?width=212&height=376)