Samsung Galaxy S21 5G
Android 11.0
Select help topic
1 Find "Mobile networks"
Slide two fingers downwards starting from the top of the screen.
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Press the settings icon.
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Press Connections.
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Press Mobile networks.
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2 Turn data roaming on or off
Press the indicator next to "Data roaming ‹SIM›" to turn the function on or off.
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3 Return to the home screen
Press the Home key to return to the home screen.
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