1. Find "Data roaming"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-32c75d03-10b2-4797-abef-3a36148e6379.png?width=204&height=456)
Press SIM cards & mobile networks.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-c253491f-3c4b-44f7-8417-2e98a85cf4a0.png?width=204&height=456)
Press Advanced settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-8feff3d8-e1b1-44f2-aa00-1169ac2a034b.png?width=204&height=456)
Press Data roaming.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-ceccb968-28de-490e-8f2d-1bcac32db984.png?width=204&height=456)
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-6565a4fd-1ae9-421b-80b0-45ea2b52242f.png?width=204&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-6565a4fd-1ae9-421b-80b0-45ea2b52242f.png?width=204&height=456)