iPhone Upgrade 4.2.1 to 5.0.1 with custom IPSW not working

Discussion in 'Jailbreaks and iOS Hacks' started by felipenpm, Oct 14, 2012.

  1. felipenpm macrumors newbie

    Joined:
    Oct 14, 2012
    Location:
    Brazil
    #1
    Hello,

    I've been trying to upgrade my iPhone 4 bb 03.10.01 to 5.0.1 but all i get is Itunes error 21!

    I'm following these steps:

    1. redsn0w 0.9.14b2 - custow + stitch IPSW (also checked the SHSH);
    2. Pwned DFU;
    3. clean hosts file (deleted tinyumbrella lines);
    4. restore + option key;

    I found in a forum that someone with the same problem managed to upgrade by stitching and then customizing the IPSW, but when i try that with redsn0w, i get the general error message! Any ideas?
     
  2. TouchArchive macrumors member

    TouchArchive

    Joined:
    Sep 24, 2012
    Location:
    IL
    #2
    Hi,do you have your SHSH file for iOS 5.0.1?
    Run fix recover from redsn0w
     
  3. felipenpm thread starter macrumors newbie

    Joined:
    Oct 14, 2012
    Location:
    Brazil
    #3
    Yes, i have all my SHSH backed up w Tinyumbrella. I've never tried the "Run fix recover" - Should i use this instead of Pwned DFU?
     
  4. TouchArchive macrumors member

    TouchArchive

    Joined:
    Sep 24, 2012
    Location:
    IL
    #4
    On recovery mode
     
  5. TriJetHero macrumors 601

    TriJetHero

    Joined:
    Oct 13, 2010
    Location:
    World
    #5
    us the latest redsn0w 9.15b1

    error 21 means your not in DFU
     
  6. felipenpm thread starter macrumors newbie

    Joined:
    Oct 14, 2012
    Location:
    Brazil
    #6

    OK, so after "error 21" i go back to redsn0w and run this fix recovery? Or is it after Pwned DFU. (sorry, got a little confused now..:D)

    ----------

    Hi, actually redsn0w is not returning any errors after Pwned DFU, and it says that my device is on Pwned DFU, so i think that's not it. I'll download the latest version of redsn0w, maybe i'll get lucky this time! :)
     
  7. TouchArchive macrumors member

    TouchArchive

    Joined:
    Sep 24, 2012
    Location:
    IL
    #7
    C:\windows\system32\drivers\etc\ and opened hosts and delete the ip that was for apple and save the hosts file
    1. Restart computer
    2.Put iPhone in recovery mode not in DFU but in Recovery mode ( apple with the cable) and then opened iTunes and the iTunes detect the iPhone in recovery mode press restore with custom file.
     
  8. TriJetHero macrumors 601

    TriJetHero

    Joined:
    Oct 13, 2010
    Location:
    World
    #8
    This not correct, custom firm needs to be restored in pwn-DFU.

    Recovery is only used for stock firmware
     
  9. dhlizard macrumors G4

    dhlizard

    Joined:
    Mar 16, 2009
    Location:
    The Jailbreak Community
    #9
    Use the newest Redsn0w

    Extras->Even More->Restore
     
  10. felipenpm thread starter macrumors newbie

    Joined:
    Oct 14, 2012
    Location:
    Brazil
    #10
    It worked! Thanks for the tip, it is soooooo easy to restore now!
     

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