1 Find "Wi-Fi"
Slide your finger downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-47aa0ad2-b922-4d6c-8646-0a4141ccbc58.png?width=208&height=426)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-fccf707e-0f5e-46ac-b3b5-3ae2cab37115.png?width=208&height=426)
Press Connections.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-4fcd13ca-4f3e-494a-b8a6-a87b5cd074d3.png?width=208&height=426)
Press Wi-Fi.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-d180c7da-bc35-4407-a8dc-08490ac1e283.png?width=208&height=426)
2 Turn automatic use of mobile data on or off
Press ADVANCED.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-45e4b84a-9aac-49a9-8bb1-802cb093cc81.png?width=208&height=426)
Press the indicator next to "Adaptive Wi-Fi" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-fc870404-0f36-4c3d-9e21-4e10646c06e8.png?width=208&height=426)
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-fc870404-0f36-4c3d-9e21-4e10646c06e8.png?width=208&height=426)