1. Find "Mobile network"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-7c1213bb-0337-4321-9317-69f7f0e4825c.png?width=202&height=404)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-cb430479-9e13-42c4-9095-2999a8a92553.png?width=202&height=404)
Press Network & Internet.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-7d6b292b-c541-407b-a63f-a2998f3c5c68.png?width=202&height=404)
Press Mobile network.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-b41f548c-83d1-4d88-86db-0e6e00d37e79.png?width=202&height=404)
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-fc2ec12e-5cfe-4864-b02c-843487e7aedf.png?width=202&height=404)
If you turn on data roaming, press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-b181609d-9897-464f-9afb-cd3c6008535d.png?width=202&height=404)
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-124aad32-63e0-460b-860c-0dbcfdeeb61c.png?width=202&height=404)