3gs - 4.2.1 6.15.00 Cydia - DFU - Restore problem

Discussion in 'Jailbreaks and iOS Hacks' started by ratlab, Sep 18, 2011.

  1. ratlab macrumors newbie

    Joined:
    Sep 18, 2011
    #1
    The description is bad: Iphone 3gs with 4.2.1 broadband 6.15.00 unlocked and jailbroken. I am not sure which software was used because I bought the phone off e-bay. I started Cydia and the phone goes black as in DFU mode. I plug it into my Mac and allow a restore. Apple will not "recognize the restore" and I tunes wants to upgrade. I stop at this point. Is there anyway I can get my Iphone unlocked and working again?

    Thanks
     
  2. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #2
    You can only restore it to custom ipsw's since it has the ipad baseband.
    An official restore with itunes will always error out.
    Create a custom 4.1 ipsw with pwnage or snowbreeze and restore using that.
     
  3. Intell macrumors P6

    Intell

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    Jan 24, 2010
    Location:
    Inside
    #3
    He could make a 4.3.3 IPSW with PwnageTool or Sn0wbreeze if he has the SHSH blobs for that firmware.
     
  4. labman macrumors 604

    labman

    Joined:
    Jun 9, 2009
    Location:
    Mich near Detroit
    #4
    check which if any blobs you have via tiny umbrella and cydia if seller used make it easy option in cydia.
     
  5. ratlab thread starter macrumors newbie

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    Sep 18, 2011
  6. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
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    #6
    True, not sure if he does though.
    And since Apple is still releasing 4.1 blobs for the 3GS it would be a sure deal that it would work.
    But I agree that 4.3.3 would be a better option if he can go with that.
     
  7. machasm macrumors member

    Joined:
    Dec 21, 2010
    #7
    create a custom 4.2.1 firmware and restore with that in DFU mode.
     
  8. ratlab thread starter macrumors newbie

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    Sep 18, 2011
    #8
    How do you create custom IPSW? Software for Mac recommendations.

    Thanks
     
  9. Intell macrumors P6

    Intell

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    Jan 24, 2010
    Location:
    Inside
    #9
    PwnageTool
     
  10. ratlab thread starter macrumors newbie

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    Sep 18, 2011
    #10
    Spent days several times using PawnageTool 4.2 - following the instructions on iClarified http://www.iclarified.com/entry/index.php?enid=4254 mod hosts file, pawnagetool, itunes. Get all the way to restoring with iTunes. I now have the error "The iPhone could not be restored because the firmware file is not compatible." Where I am going wrong?
     
  11. Intell macrumors P6

    Intell

    Joined:
    Jan 24, 2010
    Location:
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    #11
    Could the error message be anymore obvious?

    You're trying to restore non-3Gs firmware onto an iPhone 3Gs. Use the iPhone2,1 firmware.
     
  12. ratlab thread starter macrumors newbie

    Joined:
    Sep 18, 2011
    #12
    Not intuitively obvious to a newbie

    Since I have the SHSH for 4.2.1 can I restore to that software? Or just go to 4.1? I do not know the advantages of either version of software. Would restoring to an apple version of 4.1 or 4.2.1 require rejailbreaking and unlocking? Do I use the edited host file or the orignal? Since I also have 6.15.0 would that also change with the above restore?
     
  13. Intell macrumors P6

    Intell

    Joined:
    Jan 24, 2010
    Location:
    Inside
    #13
    Since you have the iPad baseband, you must jailbreak you iPhone to use it. You can use either 4.2.1 or 4.1, but you must first make a IPSW in PwnageTool.
     
  14. ratlab thread starter macrumors newbie

    Joined:
    Sep 18, 2011
    #14
    Unfortunately that is what I did. I used PawnageTool 4.2 to create a custom ISPW. Entered DFU - got to the point where PawnageTool instructed to restore using the created ISPW with iTunes. I get the could not be restored ...... error. So at this point do I allow iTunes to take the phone the 4.3.5 and then downgrade to 4.1 -jailbreak - unlock - possibly restore the iPad baseband?
     

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