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Discuss [1.1.2 OTB] Accidentally downgraded baseband. How to restore? at the iPhone "2G" (Rev. 1) - Hackint0sh.org; My phone is 1.1.2 OTB. I accidentally run downgrade baseband package from Installer. I tried ...
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    Default [1.1.2 OTB] Accidentally downgraded baseband. How to restore?

    My phone is 1.1.2 OTB. I accidentally run downgrade baseband package from Installer. I tried to cancel it by power it down. Now when I restore to fw 1.1.1 and iBrick to reboot it I can't use the dial pad to call *#307#. Itune 7.5 keeps saying I need to put the SIM card in even though I have the ATT SIM card in the phone.

    What do I need to do to restore it back to 1.1.2 OTB firmware?



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    Thread renamed, please read my signature about title format, thanks.

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    Quote Originally Posted by sv8k View Post
    My phone is 1.1.2 OTB. I accidentally run downgrade baseband package from Installer. I tried to cancel it by power it down. Now when I restore to fw 1.1.1 and iBrick to reboot it I can't use the dial pad to call *#307#. Itune 7.5 keeps saying I need to put the SIM card in even though I have the ATT SIM card in the phone.

    What do I need to do to restore it back to 1.1.2 OTB firmware?
    try to restore to 1.1.2 if it's ok then you can try to 1.1.1, if you can a error mensage when try with 1.1.2 it probably you erase the baseband.

    if you do don't panic, coz if you do you only have to restore to 1.1.3
    BUT do not do it yet. be sure about what are you want to do first, coz if you do, after that the only way to unlock(phonefuntions)it's with a simproxy.(for now)

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    I tried to restore to 1.1.2 but iTunes kept saying Restoring firmware. I left it for 15 mins and still the same. Looks like it got stuck somewhere. Anymore ideas?

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    i think your last chance is Restore to 1.1.3


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    no way man, dont upgrade to 1.1.3, if you have the new 4.6 BL, you will be hooped. with the new bootloader you can affect your baseband, let alone screw it up. you dont need itunes to tell you anything. to run *#307#.
    i dotn get why people have a working iphone and then go snooping around and run programs they have no idea what they do.. try this... works for me.. restore to these firmwares in this order..
    102
    112
    111

    what ever you dont upgrade/restore to 1.1.3 sounds like a hardware problem more than software.

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    use the ibrickr 1.0.2 downgrade then once u done that restore to whatever firmware you want like restore to 1.1.2 to get the 1.1.2 bb

    thumbs up this post if it was useful
    iPhone 3G - Black [2.2]

    MacBook Black - Windows Vista & leopard [4GB Ram]

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    I've tried to restore to 1.1.2 but receive 1002 error in the end. Tried to use iBrick to restore to 1.0.2 but iTunes 7.5/7.6 displayed message Waiting for iPhone message right after extracting the firmware. It is stuck there for along time and I had to disconnect iPhone to get out.

    What is the correct method to downgrade to 1.0.2? Or is upgrade to 1.1.3 is my only solution? I have 1.1.2 OTB so I don't want to be stuck with iPod function after upgrade to 1.1.3 unless this is the only solution to unbrick it. Please let me know ASAP. Thanks.

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    If you have 1.1.2-otb and you DIDN'T hardware downgraded your bootloader, you are supposed to have the 4.6-bl, right ?

    And if you have the 4.6 bootloade this baseband downgrade will FAIL, except if you you manually inserted the 1.1.3-secpack (that would be a really intersting thing to try, but i've heard a lot of bad things about it... so don't try it if you don't know what you're doing)

    If you simply run a standard baseband downgrade (where did you get it ? which source ?) it should have the standard 04.02.x secpack and lower... therefore it shouldn't have made any change to your phone.

    If I were you i would do the follwoing:
    * Put the phone into DFU
    * Restore it back to 1.1.1
    * get out of restore mode (using 1.1.2-jailbrea or ibrick) then Jailbreakme.com
    * see what baseband you have...

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    Yes, I have 4.6BL. The baseband downgrade package was from i.unlock.no as I was preparing to do HW downgrade on bootloader. But I haven't started anything except downgrade to 1.1.1, installed BSD, Terminal, SSH and downgrade Bootloader. I thought I needed baseband downgrade as well I click on Install. The package was trying to downgrade the baseband so I got panick and shut power off on the iphone. Well I turn it on again, I received the iPhone Repair message and No ATT SIM even though it's in the phone.

    I've tried to restore 1.1.2 but received error 1002 in the end. Tried to restore to 1.1.1 and use iBrick to boot the phone. When I am at Activate iPhone I can't slide the bar to get to the dial pad but Repair Needed message pops up. No sound, no wifi and just ..... where the NO SERVICE (network provider's name) supposed to be displayed.

    Any ideas? If not I will have to upgrade to 1.1.3 I guess ((((


 

 
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