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  1. Sportychicc's Avatar
    i have an iphone 3g that was accidentally upgraded to 3.1.3, prior to the upgrade my phone was unlocked for my tmobile sim card, but since the upgrade i am not able to use my sim...I have tried to downgrade back to the 3.1.2 in order to unlock the phone again and start fresh but i havent been able to!! HELPPPPP!! i was also wondering if i were to use someone else's att sim would i be able to downgrade back to the 3.1.2 then unlock since unlocking a 3.1.3 is apparently not able to happen. plzzzzz help, open to any suggestions!
    2010-03-10 07:48 PM
  2. kwine's Avatar
    When you upgraded you also updated the baseband which is not downgradable. There is no unlock for the new baseband so you will have to wait. Sorry.
    2010-03-10 08:07 PM
  3. Sportychicc's Avatar
    damn...thats wht i was thinking. so what if i were able to use an att sim card into the phone would it work since its upgraded and wouldnt need to be unlocked?
    2010-03-10 08:13 PM
  4. Piazza331's Avatar
    The phone can still be used on AT&T if you have a sim card you can use for it.
    2010-03-10 09:16 PM
  5. Frostbite's Avatar
    I agree with everything Pizza said but I have a question; when you upgrade to 3.1.3 does it ask you if you want to upgrade the baseband, or does it just include it in 3.1.3?
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    2010-03-10 10:31 PM
  6. Piazza331's Avatar
    It's done automatically.
    2010-03-11 04:59 AM
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