![Samsung Galaxy S21 Ultra 5G](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-ee679143-c863-46d6-9a64-f2457162c911.png?width=150&height=320)
Samsung Galaxy S21 Ultra 5G
Android 11.0
1. Find "Wi-Fi"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-b046ae34-0c83-43a5-a7fe-d4a9539ce1cc.png?width=210&height=466)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-3ac35714-e62f-4d66-837a-4ea3e6c9326f.png?width=210&height=466)
Press Connections.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-8b8c163e-b3c2-49f0-ae42-f33f8069b5c2.png?width=210&height=466)
Press Wi-Fi.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-bdf734f9-504a-47e0-abfa-a8d45e93ca15.png?width=210&height=466)
2. Turn on Wi-Fi
Press the indicator to turn on the function.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-f6971187-fd4a-400f-99c5-cbedbcff820a.png?width=210&height=466)
3. Turn automatic use of mobile data on or off
Press the menu icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-c8c22336-280f-4027-b343-8480219cac0c.png?width=210&height=466)
Press Advanced.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-cf502081-8857-451b-9801-7d0b2abfc778.png?width=210&height=466)
Press the indicator next to "Switch to mobile data" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-57fa1483-f7f8-4c74-b567-af7ebba3ac04.png?width=210&height=466)
4. Return to the home screen
Press the Home key to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-57fa1483-f7f8-4c74-b567-af7ebba3ac04.png?width=210&height=466)