1. Find "Wi-Fi"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a92c050c-dd0a-4b29-81f0-ae33f5cc412d.png?width=202&height=450)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-837bfca8-e594-489c-b218-dea0792a66ce.png?width=202&height=450)
Press Wi-Fi.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6a32b7c8-87ef-445c-b343-e1643d62e46d.png?width=202&height=450)
2. Turn on Wi-Fi
Press the indicator next to "Wi-Fi" to turn on the function.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-19e61f15-22d6-4d45-97cf-ca72afdfcef3.png?width=202&height=450)
3. Turn automatic use of mobile data on or off
Press Advanced settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-d3104545-8da8-444a-b8d9-08579d117663.png?width=202&height=450)
Press Wi-Fi Assistant.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-2f72c25e-c6f7-48b2-907a-058b0ce37d24.png?width=202&height=450)
Press the indicator next to "Auto-connect to the best Wi-Fi" to turn on the function.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-176bbb2f-c0e1-4577-9fd3-090f29c0ab5d.png?width=202&height=450)
Press the indicator next to "Auto-switch to mobile network" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-2e7148bf-109f-4f3e-a293-18fa9dae0526.png?width=202&height=450)
4. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-2e7148bf-109f-4f3e-a293-18fa9dae0526.png?width=202&height=450)