iPhone iPhone 4 update/jailbreak guidance

Discussion in 'Jailbreaks and iOS Hacks' started by scud101, Aug 23, 2013.

  1. scud101 macrumors newbie

    Aug 22, 2013
    Hi all,

    I have attempted, rather unsuccessfully, to upgrade an iphone 4 (model no. MC603) that I just bought from a friend. Before it was given to me it was restored through itunes to version 4.3.3 (8J2). It is locked to the bell network in Canada and I would like to use it on Koodo. I thought the best/most economical way to do this would be JB and then unlock it (which I understand can be done for free once the phone is JB'en).

    Ideally I would like to update it to the best/most recent iOS version that can have a untethered JB (iOS 6.1.1 I think?).

    Initially I tried 5.1.1 through itunes --> error 3194
    So I changed the host file when logged into admin so that there was a # in front of any apple related ip --> error 1600
    So I tried these directions: http://itekaz.blogspot.ca/2013/02/iphone-restore-itunes-error-1600-solved.html --> error 11

    I haven't been able to find a fix for error 11, and really I would just like to scrap 5.1.1 and update to a more recent version.

    Thanks in advance for help/advice that is offered.
  2. TriJetHero macrumors 601


    Oct 13, 2010
    You cannot restore to a none signed firmware unless you have valid so called blobs/SHSH/APticket

    Is those were saved previously for the phone you should be able to restore.
    The latest untehered is for upto 6.1.2.
    You can find out if the there are any blos for it with redsn0w or with TinyUmbrella. Redsn0w can check if they are valid which also can be done with iFaith

    You can however upgrade to 6.1.3 which is the latest firmware signed by apple, you can tether jailbreak that.

    The free software unlock can only be done if the device still has the 1.59.0 BaseBand. Check and see if it does. If so you need to preserve the BB when restoring to higher firmware.

    If the BB is higher than 1.59.0 you cannot unlock that way and need to request it from Bell with an IMEI unlock, buy an IMEI unlock online via the grey market or get a suitable SIM interposer to unlock.

    Start by doing some research on the above topics so you don't make irreverseible errors.
  3. scud101 thread starter macrumors newbie

    Aug 22, 2013

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