How do Can I downgrade to 3.1.3 on my 3GS from 4.0 if I upgrade?

Discussion in 'Jailbreaks and iOS Hacks' started by ahfu25, Jun 16, 2010.

  1. ahfu25 macrumors 6502a

    Joined:
    Dec 28, 2009
    #1
    I have 3.1.3/5.12 and I wanted to try 4.0. If i wanted to downgrade to 3.1.3 how would go by doing so? my SHSH's are on file with saurik. Im using a windows laptop. I am currently jailbroken with spirit. I dont care much to jailbrake 4.0 as I am getting the iPhone 4 soon.
     
  2. Martinsalas310 macrumors regular

    Joined:
    May 13, 2010
    Location:
    Nampa, idaho
    #2
    trick ur itunes into thinking its reading apples servers into actually checking sauriks's and then just enter ur phone into recovery mode then alt+click restore then choose 3.1.3 then when u get error message use a program called recboot to kick ur phone off recovery and there u go let me know if u have more questions as i just firured this out like 3 days ago and just did it and it worked perfect!:apple:
     

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