Downgrade question regarding 4.0.1

Discussion in 'Jailbreaks and iOS Hacks' started by AE92AFP, Jul 28, 2010.

  1. AE92AFP macrumors newbie

    Joined:
    Jul 28, 2010
    #1
    Quick question. I had my 3gs serviced and hoped to receive a replacement with 3.2, however I received 4.0.1. How can I downgrade, if possible, to a OS that is JB and unlockable.




    Thanks!!!



    ps. love the board, been an avid reader, just never posted :)
     
  2. thelatinist macrumors 603

    thelatinist

    Joined:
    Aug 15, 2009
    Location:
    Connecticut, USA
    #2
    If the previous owner of your refurbished phone had his SHSH cached on Saurik's server, it will be possible for you to downgrade. You can find out by doing the following:

    1) Downloading a program called TinyUmbrella and extract the program file to your desktop or hard disk.

    2) Run the program.

    3) Check "Advanced Options."

    4) Select "iPhone 3.1.3 (7E1H)" from the Device/Version menu.

    5) Click "Save My SHSH."

    If you have your SHSH on file, you will see "SHSH SUCCESSFULLY saved!" in the Log.

    Otherwise, you will have to wait for a new tool to be released. One is expected within a week or so.
     

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