iOS 4.0 Possible way to JB my 3gs?

Discussion in 'iOS Jailbreak & Cydia' started by jamespheely, Jun 23, 2010.

  1. jamespheely

    jamespheely Member

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    Hi guys, for anyone running windows with a 3gs with the old bootroom running ios4. would it be possible to jailbreak if someone i.e. a mac user uploaded there quickpwn'ed firmware and then restore using that?

    thanks
  2. thfcmad

    thfcmad New Member

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    yes, ive just done it myself!!
  3. jamespheely

    jamespheely Member

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    seriously? check your pm's
  4. dude245

    dude245 Member

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    nope, you have to be running an exploited iboot to restore to custom... go back to 3.1.3, redsn0w, then update to custom 4.0

    or mabye dfu, im not sure, but the first one worked for me
  5. jamespheely

    jamespheely Member

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    have you managed to jb your 3gs?

    i cant go back to 3.1.3 as i dont have my shsh's
  6. b-mac 39

    b-mac 39 Well-Known Member

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    Do it quickly. Apple is still signing 3.1.3.
  7. thfcmad

    thfcmad New Member

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    Sorry, i didnt read your initial post properly. You need to be on 3.1.2/3.1.3 and already jailbroken using any tool other than spirit. If you meet these requirements and are on the old baseband then you can use a custom firmware to update to 4.0 and still be JB.

    So, im running windows and i had a 3GS JB on 3.1.2, i obtained a custom firmware (ask someone you know with a mac to make you one), then just shift and restore using the custom firmware and you will still be JB and on 4.0!
  8. ocr123

    ocr123 Member

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    How do I downgrade to 3.1.2?
  9. dude245

    dude245 Member

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    yeah, anything jailbroken on 3.1.2/.3 with redsn0w or blackra1n with old bootrom now has the exploted iboot, you can restore to any custom f/w, good luck and happy hacking
  10. jawkneefive

    jawkneefive New Member

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    I updated my 3GS to IOS4 after being on 3.1.2 jailbroken with Spirit. No Jailbreak for that and IOS4 cut out my MMS and the "multitasking" is bullsh*$ so I downgraded back to 3.1.2 using the method below. Worked great but my bootrom, however, did not downgrade.

    I'm now JB'd with 3.1.2 and BR 05.13.04 and i'd like to try again with IOS4. Anybody know how?


    www.ihackintosh.com/2010/06/downgrade-iphone-3g-3gs-ios-4-gm-to-os-3-1-3/

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