Unjailbreaking iPhone 3G ( 3.0.1)

Discussion in 'Jailbreaks and iOS Hacks' started by johnsmith55, Sep 11, 2010.

  1. macrumors newbie

    Joined:
    Sep 11, 2010
    #1
    Currently my 3g is jailbroken, and I want to unjailbreak it completely.

    Can I just upgrade to firmware v4 to undo the jailbreak?

    If i do this, will I still keep all my contacts, txt messages, pictures, etc.?


    EDIT: it's 3.1.3, not 3.0.1, sorry.
     
  2. thread starter macrumors newbie

    Joined:
    Sep 11, 2010
  3. macrumors 68000

    VPrime

    Joined:
    Dec 19, 2008
    Location:
    London Ontario
    #3
    Yes.
    Just connect to computer. Open iTunes. Click update.
     

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