Been a While. Old SIM in new iPhone?

benh911f

macrumors 6502
Original poster
Mar 11, 2009
395
165
I just switched over to T-Mobile a few months ago, and am going from a 6S to a Xs. Do I take the old SIM card out of the old phone and place in the new one?
 

jr866gooner

macrumors 68000
Aug 24, 2013
1,529
341
I just switched over to T-Mobile a few months ago, and am going from a 6S to a Xs. Do I take the old SIM card out of the old phone and place in the new one?
That’s what I’d do. Some carriers here in the U.K. insist on new sims to work better in new devices. Perhaps they are programmed to receive newer carrier updates.
 
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