Device Guides

Samsung Galaxy S21 5G

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My mobile phone uses a large amount of mobile data

This troubleshooting guide will take you through a number of possible causes to help you find a solution to your problem.

Possible cause 1:

Automatic mobile data usage is turned on: Turn off automatic use of mobile data.

List view

1. Find "Wi-Fi"

Slide two fingers downwards starting from the top the screen.
Tap the settings icon.
Tap Connections.
Tap Wi-Fi.

2. Turn on Wi-Fi

Tap the indicator to turn on the function.

3. Turn automatic use of mobile data on or off

Tap the menu icon.
Tap Advanced.
Tap the indicator next to "Switch to mobile data" to turn the function on or off.

4. Return to the home screen

Tap the Home key to return to the home screen.
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