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I just got a new iphone 12 pro max...can I use the brand new SIM card or should I transfer my SIM from my old phone (One Plus 6T)

Not sure if I should use the new phone SIM card or transfer SIM from old phone (One Plus 6T on T-Mobile)


iPhone 12 Pro Max, iOS 14

Posted on Jul 28, 2021 5:50 PM

Reply
Question marked as Top-ranking reply

Posted on Jul 28, 2021 5:56 PM

The old SIM cards will work however will not be able to provide 5G. You may get up to 4G LTE from T-Mobile. T-Mobile has 5G service and they will ask you to go to their store and get a new 5G SIM Card.


Axel F.

2 replies

I just got a new iphone 12 pro max...can I use the brand new SIM card or should I transfer my SIM from my old phone (One Plus 6T)

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