Can't Downgrade to 4.2.1 even with SHSH

Discussion in 'Jailbreaks and iOS Hacks' started by sbddude, Apr 11, 2011.

  1. sbddude, Apr 11, 2011
    Last edited: Apr 11, 2011

    sbddude macrumors 6502a

    Joined:
    Sep 27, 2010
    Location:
    Nor Cal, USA
    #1
    I have saved SHSH both on Cydia and TinyUmbrella.

    I am trying to restore from 4.3.1 to 4.2.1, but I keep getting errors.

    I have tinyUmbrella running with the server started - but it hangs at "preparing iphone for restore" and eventually stops with error 1604.

    I also tried editing the hosts file manually to point to cydia, but this time it says "the device isn't eligible".
     
  2. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #2
    You try kicking it out of recovery with TU after you get the error?
     
  3. sbddude thread starter macrumors 6502a

    Joined:
    Sep 27, 2010
    Location:
    Nor Cal, USA
    #3
    Yeah, it's stuck in recovery unless i update it to 4.3.1 (with unmodified hosts file).
     
  4. eastercat macrumors 68040

    eastercat

    Joined:
    Mar 3, 2008
    Location:
    PDX
    #4
    -are you using stock or custom firmware?
    -are you putting the phone into DFU or recovery?

    If you're needing a jb, create a custom firmware with pwnage. It'll put you into DFU.
     
  5. sbddude thread starter macrumors 6502a

    Joined:
    Sep 27, 2010
    Location:
    Nor Cal, USA
    #5
    Originally it was 4.2.1 stock, but jailbroken. I want to restore so I can start fresh. I used TU to put it in restore mode first before attempting restore.

    Now I am at 4.3.1, because it wouldn't let me go back.
     
  6. eastercat macrumors 68040

    eastercat

    Joined:
    Mar 3, 2008
    Location:
    PDX
    #6
    I'm not sure if you need to be in DFU or restore; I'm guessing the former. D/l the ipsw again, just in case it was corrupted. If you're going to jb 4.2.1 again, create custom firmware in pwnage; you'll be prompted to DFU the phone following their instructions. Start the TU server, open itunes and press option and restore.
    BTW, you said you have the 4.2.1 blob on your computer, right?
     
  7. sbddude thread starter macrumors 6502a

    Joined:
    Sep 27, 2010
    Location:
    Nor Cal, USA
    #7
    Yes, TU says it's there.

    I already did this...

    I'll try that way.
     
  8. eastercat macrumors 68040

    eastercat

    Joined:
    Mar 3, 2008
    Location:
    PDX
    #8
    I had to ask. Some people don't realize you need the 4.2.1 blob to install 4.2.1. Crazy, I know.
     

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