1. PapalosC's Avatar
    Hey all,

    I just had a quick question. I've gotten quite fed up in recent weeks with AT&T, and I've decided that I'd rather not continue my service with them. However, I also don't want to lose the functionality on my iPhone.

    The Apple support site says that I should just remove the Sim card, but my question is this: will this cause problems when I try to update my phone in the future to 4.0? Or beyond?

    I just want the most painless transition to a non-AT&T data plan capable iPhone.

    Would "unlocking" be appropriate in this situation?

    Thanks in advance for your advice!!!
    05-17-2010 07:01 PM
  2. rdiddy_25's Avatar
    In order to upgrade to 4.0 thru iTunes it will require a valid sim card but until then you'll be good. If u ever need to restore, you'll need a valid sim card to do so.
    05-17-2010 08:20 PM
  3. PapalosC's Avatar
    Okay, I guess what still confuses me is the "active sim" part. Does that mean ANY active AT&T sim card that I can stick in, or is there an iPhone specific one?

    Do you understand where I'm going with this? Can I buy a new (crappy) phone, and then when I want to upgrade just pop in that sim, upgrade, and switch back?
    05-18-2010 05:31 PM
  4. mg48's Avatar
    It needs to be a sim with an iPhone plan. I borrowed a friends last time I upgraded.
    05-18-2010 10:22 PM
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