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Thread: Bricked iPhone? HELP. "Incorrect Sim Insert an unlocked and valid sim to activate"

  1. #1
    Default Bricked iPhone? HELP. "Incorrect Sim Insert an unlocked and valid sim to activate"
    Well, my mate stuffed up. I jailbroke his 1.1.2 OOB so he could use it as a iPod and what not in the meantime while we waited for an unlock. And he upgraded to 1.1.3, now he gets the message "Incorrect Sim Insert an unlocked and valid sim to activate phone"

    How can i fix this?

    Im currently on 1.1.2 how do i virginize it?

    Cheers.

  2. #2
    Default help
    I've exactly the same issue , anybody can help ? i heard that if we reached this stage, our iphone will work as iPOD, is this correct ?

  3. #3
    Just as an iPod....****. LOL.

    Can anyone help please?

  4. #4
    i had the same problem i upgraded to 1.1.3 from my jailbroken 1.1.2.....then i tryed to go back to 1.1.2 or even 1.1.1 evrything went good till "insert an unlocked and valid sim to activate"popped up.i have at&t service and i never got this message before.so now im on the 1.1.3 firmware with no problems but cant downgrade because that error message.i even toook the chip out and put it back in.and it still did not work this sucks help!!!!

  5. #5
    whats happening is the itunes 1.1.3 update is flashing your baseband firmware.
    the new firmware doesn't play well with 1.1.1 and 1.1.2.
    you need to downgrade your baseband. good luck. i have no idea how thats done.

  6. #6
    Green Apple mbrando45's Avatar
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    You may choose to do part, or all of this. But, I'm sure it will fix your problems.

    Mark

  7. #7
    Hi guys,

    Solution for iPhone with 3.9 bootloader:
    http://www.hackthatphone.com/113/iph...grade_113.html

    Solution for 4.6 bootloader (this is >= 1.1.2 iPhones)
    Step 1. http://iphone.unlock.no/bootloader_downgrade.htm (Hardware modification)
    Step 2. http://www.hackthatphone.com/113/iph...grade_113.html

    I'm looking for a software solution to downgrade bootloader 4.6 or a baseband replacer for 1.1.2 OTB.

    Any help will be apreciated.

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