Can I update my iPhone and activate with an AT&T sim...

Discussion in 'iPhone' started by amirite, Mar 31, 2010.

  1. amirite macrumors 6502a

    Aug 17, 2009
    I have an iPhone locked to AT&T. After updating, if I don't have the AT&T sim in it, then it won't activate. (I'm not talking about unlocking here).

    Well, I cancelled my AT&T account and my iPhone is unlocked on 3.1.2

    If I were to upgrade the firmware (which will require reactivation) will the AT&T sim still activate it?

    edit: I know about "hacktivation" but I would like to keep my push notifications.
  2. farmermac macrumors 6502a

    Jul 23, 2009

    I activate my unlocked iPhone with AT&T sim then pop in my iwireless sim. I've upgraded to every jailbreak/unlock firmware along the way with no issues using the AT&T sim.
  3. amirite thread starter macrumors 6502a

    Aug 17, 2009
    So the account tied to the AT&T sim is canceled and it still works?

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