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  1. Thread AuthorThread Author   #1  
    nismoasfuh's Avatar
    iPhone Nanite

    1 Posts

    Default help...

    hi everyone. i picked up an iPhone 2g a few days ago with the intention of using edge blocker and jailbreak it. i run everything and it seems to work fine, but my SIM wasn't detected. Yes, i have AT&T. i realize then that the phone was in firmware 3.1.3. i did some research realized that i cant use it in my situation, so i downgrade to 3.1.2.run everything again....to no avail... still says no sim, no service. is there anyway to fully restore the iphone? i believe that the iphones internal memory is still on the newest firmware even though i downloaded 3.1.2. or at least that's what i have been told....please help:
  2. #2  
    DataCentre's Avatar
    iPhone Intermediate

    205 Posts
    Global Posts
    766 Global Posts


    Once the firmware is updated, the baseband is changed. That cannot be downgraded. Your stuck. Sorry.
  3. #3  
    LVCIFER's Avatar
    iPhone Specialist

    1,394 Posts
    Global Posts
    1,397 Global Posts


    Actually, if you're jailbroken somehow, do some research about fuzzyband. You MAY be able to downgrade your baseband as well, which would then allow you to possibly unlock. However, you seem to be on AT&T, so I don't think that will matter.

    You may need to get a new SIM card from AT&T.
  4. #4  
    big9erfan's Avatar
    iMore Elite

    2,454 Posts
    Global Posts
    2,455 Global Posts


    2G baseband doesn't upgrade any longer IIRC. Since he's on AT&T there's no need to unlock. I don't see what the problem is here. You should contact AT&T or try your sim in another phone.

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