iPhone 4 to iOS6 - An unknown error occured (-1)

Discussion in 'iOS 6' started by suresh31, Jun 11, 2012.

  1. suresh31 macrumors regular

    Nov 28, 2007
    I am trying to update my developer registered iPhone 4 to iOS 6 and keep getting this "An unknown error occurred(-1)" .

    Anybody having the same problem? Any solution?
  2. Sir Ruben macrumors 65816

    Sir Ruben

    Jul 3, 2010
  3. suresh31 thread starter macrumors regular

    Nov 28, 2007
    yeah, restoring to 5.1.1 works but so far no luck in getting it to update to iOS6.
  4. Diode macrumors 68020


    Apr 15, 2004
    Washington DC
    You are on the latest and greatest iTunes right?

    If so a restore or DFU restore might be needed.
  5. EritaBe macrumors newbie

    Sep 24, 2012
    I know this is old but I have to tell you this!
    I tried updating my Iphone to Ios6, got the recovery mode screen and then it got stuck there! Got error code 3194, ok, try again (about 10 more times) now I got error code -1. Tried google, tried EVERYTHING (dfu, tinyumbrella, ireb, irecovery,) you name it I tried it! People told me that -1 meant my baseband was fried and I could kiss my Iphone 4 goodbye (hell no)
    After 2 days of trying stuff I was fed up with software and Itunes!

    Here's what I did: I removed the battery - reinserted it - same issue
    Then I removed basically everything else (my warranty is no more anyways so that didn't bother me) followed the steps from Ifixit. Made sure to attach all the cables and whatnot really good, connected it to itunes - restored
    Oh my apple, it worked!

    Me 1 - Iphone 0
  6. mathijn75 macrumors newbie

    Sep 25, 2012
    -1 and 3194

    Same error codes here (-1) and (3194) when trying to upgrade to 6.0
    Restore to 5.1.1 also not working
    What else can I do? Also disassemble my complete iPhone?
  7. EritaBe macrumors newbie

    Sep 24, 2012
    That's the only thing that worked and trust me I tried everything else.
    Start by just removing battery first and try if it works that simply for you!
  8. TriJetHero macrumors 601


    Oct 13, 2010
    3194 means your host is not pointing to apple

    Download TinyUmbrella and in advanced make sure request SHSH from Cydia and Set host to cydia are UNchecked

    flush DNS or restart.

    error -1 indicates a BB UPGRADE problem, not that it is fried, if you have that and phone is in recovery kick it out of recovery with redsn0w or TinyUmbrella
  9. KdParker macrumors 601


    Oct 1, 2010
    I was able to update to IOS6 (using iTunes) after restoring to 5.1.1 without out any issues.

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