Upgrade iPhone 3G 4.1 (8B117) to 4.2

Discussion in 'iPhone' started by phalgun27, Jun 25, 2013.

  1. phalgun27 macrumors newbie

    Jan 20, 2013

    I have jailbroken iPhone 3G ios 4.1 (8B117) with model firmware 05.14.02. Is there anyway I can restore it to factory settings with itunes? I would like to upgrade it to ios 4.2. I have factory unlocked my iPhone but I need to restore with itunes to make it work.

    Please give me suggestions. I have searched all over internet but didn't find right solution.

    If I restore my iPhone with itunes it gets stuck in recovery mode.
  2. PsstGreek macrumors 68040


    Oct 21, 2010
    Tampa Bay
    Obviously you didn't search enough but anyway....put your iPhone in DFU mode and restore to 4.2.1
  3. phalgun27 thread starter macrumors newbie

    Jan 20, 2013
    I have done enough research...the problem was with DFU mode. I was not able to do DFU mode in right because there was no slide to power off. Also I have downloaded corrupted 4.2.1 ipa file. I have downloaded the ipa file again and jailbroken my phone to 4.2 and then upgraded to 4.2.1

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