1. Find "Wi-Fi"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-baf8c3ff-5606-4a2d-b191-bbcae3927f9b.png?width=198&height=444)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-88f9f90b-6a2b-4336-b863-cc7847bbe91a.png?width=198&height=444)
Press Wi-Fi.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-b29cf363-c3cc-470a-8d04-5f7dbb6ee788.png?width=198&height=444)
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-1ea36b8d-c347-4865-8e24-766905938655.png?width=198&height=444)
3. Turn automatic use of mobile data on or off
Press Advanced settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-f5d57f88-7be9-4a88-904a-00972099bda8.png?width=198&height=444)
Press Wi-Fi Assistant.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-2140ac0e-f627-453b-9f17-74117af39a5a.png?width=198&height=444)
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-b6df8f2e-4877-44c5-87ca-e2f54c91fbe1.png?width=198&height=444)
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-a8ded548-f688-415c-9d96-3592d60565c8.png?width=198&height=444)
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-a8ded548-f688-415c-9d96-3592d60565c8.png?width=198&height=444)