iPhone Unlock Problem (Software Upgrade)

Discussion in 'iPhone Tips, Help and Troubleshooting' started by rreulbach, Aug 18, 2009.

  1. rreulbach macrumors newbie

    Aug 18, 2009
    I have recently purchased an unlocked and jailbroken iPhone for T-mobile with the 3.0 software. Unfortunately, after a months use I went to sync the iPhone to my computer and clicked to update the phone without thinking of the consequences. After installation, the phone was returned to its original software and required an AT&T sim card, as my T-Mobile sim was not recognized due to the software update and reboot. Therefore, I was required to re-unlock the phone and now I am stuck with the 2.2.1 software. So my real question is...

    Is there any way I can update my phone's software with an AT&T sim card and then insert my T-Mobile card without having to re-unlock the phone??? Or is there another method that isn't too complicated?

    Thanks in advance.
  2. jmann macrumors 604


    Dec 8, 2007
    bump on a log in a hole in the bottom of the sea
    You can't not unlock the phone. Sorry it doesn't work that way. The whole point of unlocking it is to use a different sim card with it. Just upgrade to 3.0.1 in iTunes, and then use redsn0w v 0.8 to jailbreak it.
  3. superflush macrumors 6502a

    Apr 6, 2009
    Why did you downgrade to 2.2.1 to unlock it when you were already updated???

    And, no, you need to unlock your phone every time you update the OS.

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