“I currently have ATT MF279 mobile internet. Can I just take the sims card out of it and use with this one, keeping my service with ATT the same? I am grandfathered in to unlimited and don’t want to loose it!”

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• It should work just fine but if you dont have a 5g sim card it will not receive 5g service

  Answered by Anonymous 2 years ago

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• No, it won’t work. You will need a 5G plan for that device

  Answered by joey 3 years ago

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