iphone sim card change question. Can i change iphone sim card into a different iphone? can I put my iphone sim card into my firend’s iphone and use his iphone data plan? my friend and i both have iphones but he isn’t using his anymore. his iphone is in way better condition than mine, so i want to start using that one from now on. he hasnt installed the new update yet, so can I update his iphone with my iphone’s sim card.

Yes. Sim cards were made to put in different phones. Me and my friends always trade phones but keep our sim cards to put in our new ones. Sim cards are just the service, contacts, and other data.if you are both either original iphones, or both 3G iphones then yes. If you are going Original to 3G or vice versa no. You can still download the updates once you change sim cards.

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