Upgrading from 3.1.2 to 4.0.1

Discussion in 'Jailbreaks and iOS Hacks' started by reignz, Sep 9, 2010.

  1. reignz macrumors newbie

    Joined:
    Sep 9, 2010
    #1
    Hi I everyone I have a 3.1.2 iPhone 3GS that has been jail broken and SHSH blobs saved via cydia.

    My question is will I be able to just do a simple shift+update through itunes 10, to update to 4.0.1? or will I have to change host files ect... I'm new to this thanks in advance!
     
  2. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #2
    Yes, u will have to edit your hosts first.
    Then restore to official 4.0.1, once done kick the device out of recovery with tinyumbrella and jb with jailbreakme.com
     
  3. reignz thread starter macrumors newbie

    Joined:
    Sep 9, 2010
    #3
    any youtube videos showing how to do this? or text?
     
  4. reignz thread starter macrumors newbie

    Joined:
    Sep 9, 2010
  5. reignz thread starter macrumors newbie

    Joined:
    Sep 9, 2010
    #6
    Do I go Into dfu mode when restoring to 4.0.1?
     
  6. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #7
    You dont have to.
    You can just do a regural restore thru itunes.
     

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