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Thread: Downgrading from 4.3.5 in order to unlock

  1. #1
    Default Downgrading from 4.3.5 in order to unlock
    Hello,

    My iPhone went crazy and i had no choice but to restore it (Several freezes, loooong time to boot, etc ... )

    It is now in 4.3.5 and I jailbroke it using redsnow
    Cydia says its SHSH iOS 4.1, 4.2.1+, 4.2b3, 4.3.5 are saved.

    Can i downgrade it in order to be able to unlock it ?
    What iOS version ? How ?

    I downloaded the ipsw files for 4.3.2, 4.2.1 and 4.1.

    If the downgrade is possible, will the jailbreak be an untethered one ?

    Thank you very much

  2. #2
    yes u can downgrade to any of the SHSH u have saved, i would suggest 4.3.2 or 4.2.1 , just make urself a custom ipsw with sn0wbreeze make sure u go to tiny umbrella go to advanced and set hosts to cydia on exit then put ur iPhone into DFU , run iREB4 after iREB4 gets done go to itunes and shift+restore and ur process will start, to unlock u will need to run redsn0w after u finish ur downgrade process and install iPAD baseband ! then go to cydia and install ultrasn0w to unlock !

  3. #3
    My iPhone is a Part of Me xtacy's Avatar
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    Follow this

    :
    Download tinyumbrella
    Connect the phone and click on save shsh.
    It will download your shsh.
    Now start TSS server.
    Open iTunes
    Shift restore 4.2.1
    1013 error you will get.
    Download this
    http://cache.firmwareumbrella.com/do...overy-win.zip#
    Run it

    Activate phone using your official sim.
    Jailbreak and install iPad bb using redsn0w
    Download ultrasn0w from cydia and u r done.

  4. #4
    Hello,

    I followed what you indicated (twice):
    I Shift+Restored 4.2.1, i got error 1015
    I launched FixRecovery 421 (Mac OSx)

    But after a while (white script text on the iphone and terminal) i get this error message on the iphone :
    Error no successful firmware download after 60000 ms; giving up.
    Now the phone is displaying the iTunes logo and the wire
    Any ideas ?
    Thanks

  5. #5
    Livin the iPhone Life
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    Quote Originally Posted by BassP View Post
    Hello,

    I followed what you indicated (twice):
    I Shift+Restored 4.2.1, i got error 1015
    I launched FixRecovery 421 (Mac OSx)

    But after a while (white script text on the iphone and terminal) i get this error message on the iphone :


    Now the phone is displaying the iTunes logo and the wire
    Any ideas ?
    Thanks
    Before running FixRecovery 421, put phone in ..normal.. DFU mode (black screen)

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