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Microsoft Lumia 640

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Turning data roaming on my mobile phone on or off

If you want to avoid using data when you're abroad, you need to turn off data roaming on your mobile phone. Once done, you can only make voice calls, send SMS and use applications that don't require an internet connection.

Slide your finger down the display starting from the top edge of your mobile phone.
Tap ALL SETTINGS.

Tap mobile+SIM.

Tap the field below "Data roaming options".

Tap roam or don't roam.

Tap the home icon to return to the home screen.

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