![Samsung Galaxy A51](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-b6d96491-99c4-41fa-b8ba-089f6c4bdd66.png?width=150&height=320)
Samsung Galaxy A51
Android 10.0
Turn automatic use of mobile data on or off
You can set your phone to use mobile data automatically when the connection to the Wi-Fi network is weak. To turn automatic use of mobile data on or off, you need to turn on mobile data.
1. 1. Find "Wi-Fi"
Slide two fingers downwards starting from the top of the screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-ba8fe847-7002-4336-9120-a2616927c3ca.png?width=204&height=454)
Press the settings icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-c1d3dfac-a61d-4197-84ae-44d0ed1a1757.png?width=204&height=454)
Press Connections.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-5ca7f918-cf74-42cc-8528-2bc3741a7567.png?width=204&height=454)
Press Wi-Fi.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-a70b7365-8cb4-4293-a344-7c4552f0296f.png?width=204&height=454)
2. 2. Turn on Wi-Fi
Press the indicator to turn on the function.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-22bd6668-4c7d-416b-9f35-f74f18e5bd70.png?width=204&height=454)
3. 3. Turn automatic use of mobile data on or off
Press the menu icon.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-770e035e-a3a3-466b-8b31-dde90caf7aa7.png?width=204&height=454)
Press Advanced.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-66c484b3-1803-4863-810d-aaec438e73f5.png?width=204&height=454)
Press the indicator next to "Switch to mobile data" to turn the function on or off.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-cc168dc8-ba36-46e0-9514-1710352f32c0.png?width=204&height=454)
4. 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-cc168dc8-ba36-46e0-9514-1710352f32c0.png?width=204&height=454)