1 Find "Mobile network"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-575a1223-a6b7-48ab-9a4b-21189040fd4a.png?width=200&height=432)
Press Wireless & networks.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6209cf7a-eae0-4dbc-ac7e-cc4b881d2d14.png?width=200&height=432)
Press Mobile network.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-fc25bc13-d064-4c96-a526-7bd403e247d0.png?width=200&height=432)
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-f99f8575-023e-4eec-a35d-0fbb2a1d46be.png?width=200&height=432)
If you turn on the function, press OK.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-e9bd37e4-eda9-4219-bc3e-8aa73b43140e.png?width=200&height=432)
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-f99f8575-023e-4eec-a35d-0fbb2a1d46be.png?width=200&height=432)