How to restore iPhone 3G iOS 4.2.1 BB 6.15

Discussion in 'Jailbreaks and iOS Hacks' started by hollowlognz, Jan 10, 2011.

  1. hollowlognz, Jan 10, 2011
    Last edited: Jan 10, 2011

    hollowlognz macrumors newbie

    Jan 10, 2011
    I've jailbroken and unlocked my 3G on 4.2.1 with BB updated to 6.15.
    I believe I have to use custom firmware to restore, but I'm not sure what to do; I'm using windows so I can't make it myself.
    Can anyone post a step-by-step of how I can restore? I'm having major battery drainage issues so bought an AT&T sim in the hopes activating it officially will help (as opposed to jailbreaking which I did when I got it to activate it).

    Thanks in advance :)

    Additional info: I have SHSH saved for 4.0, 4.0.1, 4.0.2, 4.1 and 4.2.1
  2. maturola macrumors 68040


    Oct 29, 2007
    Atlanta, GA
    Try this Website,

    You will find step by steps for everything you want to do.

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