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  • iPhone OS 4.0 Jailbreak is Released

    One week from the day Apple announced OS 4.0, the iPhone Dev Team releases a jailbreak. This jailbreak is for developers to get ahead start on updating their apps for 4.0.

    Details from: redsn0w 0.9.5 BETA [iPhone Dev Team]

    This is a beta release of redsn0w targeted at developers of jailbroken apps.

    Please not that this beta is not meant for the average end-user. There are many things “broken” with jailbroken apps in the 4.0beta1 environment right now, and this beta redsn0w allows the developers behind those jailbroken apps to fix their software before the general public gets iphoneOS 4.0.

    Because it's meant for JB app developers, this beta redsn0w does not perform hactivation. You'll need a properly-registered developer UDID with Apple to get past the activation screen. For similar reasons, there is no Windows version of this beta redsn0w (since apps are developed on MacOSX). Please don't pirate Apple software.

    Anyone other than developers of jailbroken apps porting their software to 4.0beta1 should still be using our previously-released redsn0ws for 3.0 through 3.1.3
    This BETA release supports:
    • iPhone 3G only (for now)
    • Mac OSX only (for now)
    • the 4.0beta1 FW only (for now)

    YOU SHOULD STAY CLEAR OF THIS BETA SOFTWARE IF YOU RELY ON A CARRIER UNLOCK. That's because the beta redsn0w works only if your device has already been upgraded to the stock 4.0beta IPSW from Apple, which contains a baseband update. If you installed that IPSW, you've already lost the carrier unlock until the next planned release of ultrasn0w and blacksn0w.



    Download links:

    iPhone OS 4 Jailbreak




    Multitasking on your 3G

    Once you are jailbroken, navigate to /System/Library/CoreService/SpringBoard.app/N82AP.plist

    Open the plist and change the multitasking key to = True

    if the multitasking key is not there, add it
    This article was originally published in forum thread: iPhone OS 4.0 Jailbreak is Released started by StealthBravo View original post
    Comments 194 Comments
    1. arin2010's Avatar
      arin2010 -
      anyone know how jailbreak iphone 3gs 4.0?
    1. confucious's Avatar
      confucious -
      Why the duplicate post?
    1. FulchJ's Avatar
      FulchJ -
      Sorry, I'm a newbie as you can probably tell.

      Just a quick simple question.

      I have a 3GS updated to 4.0, can this be jailbroken?

      Could someone PM me please
    1. confucious's Avatar
      confucious -
      There is no way to JB iOS 4 on a 3GS except via pwnage. To see if your device can use pwnage read Dev-Team Blog - foursome news
    1. FulchJ's Avatar
      FulchJ -
      so how do I know if I can or not?
    1. confucious's Avatar
      confucious -
      Have you actually read the blog post I linked to where it's all explained?
    1. FulchJ's Avatar
      FulchJ -
      yer but it says about it having to be jailbroken already and something about bootrom and stuff which i dont get, sorry
    1. confucious's Avatar
      confucious -
      If you are not already Jailbroken and do not have your blobs for 3.12 on file you can not JB.
    1. Dave_Xiavia's Avatar
      Dave_Xiavia -
      Quote Originally Posted by FulchJ View Post
      yer but it says about it having to be jailbroken already and something about bootrom and stuff which i dont get, sorry
      You CANNOT JB yet. Just wait it out.
    1. confucious's Avatar
      confucious -
      It's also only for devices that have already been pwned and on old BootRom - Not that the site you link to mentions this.
      Sites that give partial information like that are very likely to result in people loosing their JB/Unlock
    1. estesi's Avatar
      estesi -
      Just downgraded to 3.1.2 from os 4.0 on my 3gs MC model
    1. confucious's Avatar
      confucious -
      So now you can Pwn your phone with RedSn0w and then upgrade to 4.0 using pwnage.
    1. estesi's Avatar
      estesi -
      I don't have a mac available at this time. Will do as soon as I get one.
    1. cardac's Avatar
      cardac -
      Hi there - now - does this actually - get it to work in multitasking....
      I was under the impression that multitasking - not in any form - was available on the 3G phone....

      I would also like to ask your opinion - on the facts - that two different "jailbreaks" - can produce two ever so slightly varying results in the iPhone..??? .... I say this as concordance to the fact that these very complicated electronic computers - are so full of such a lot of complicated - extensive software routines - that such slight variances - could be very subtle - but only ever noticeable - changes in operations of some apps....

      Being a scientist - I would like to check these out for my self... I would really like to know if you could help me locate the HASH number - testing algorithm used - to generate the HASH sequence - as displayed for iOS 4.0... please...??? - secondly - where could I get Pwnage Tool 4.01... for the PC..(windows) system..

      I have the Pwnage Tool 4.01.dmg file already... and I also have the - reds0w 0.9.5b-4 programs, and routines...

      I would really appreciate - any and all help in this regard...

      Thanks for the tip as well... (I used PC suite...135) to change the text - and I hereby also noticed the huge differences in the file structure - iOS4.0 to 3.X ...(Oh **** - does things not just stay simple.!!!..???)

      My Kindest Regards
      Cardac (Spencer Sabatta)
      South Africa
      ([email protected])
    1. confucious's Avatar
      confucious -
      A good place to start is Kaatje's blog at Decrypting iPhone/iPod IPSW’s – The ABCs|TGIL, Inc
    1. xINSTiiNCT's Avatar
      xINSTiiNCT -
      iPhone 3GS - New bootrom - iOS 4.0 Jailbreak! HD:
      YouTube - iPhone 3GS - New bootrom - iOS 4.0 Jailbreak! HD
    1. moneysh0t09's Avatar
      moneysh0t09 -
      I'm patiently waiting...
    1. Yosagi's Avatar
      Yosagi -
      Already bought an HTC HD2. Just dont have time for it anymore.
    1. Cer0's Avatar
      Cer0 -
      It has only been like 2 weeks since the iPhone 4 release. People have waited a lot longer than that for jailbreaks/unlocks.
    1. Yosagi's Avatar
      Yosagi -
      With working phones probably yeah. But all I have is a $300 ipod at the moment. I just got back from vacation and had to rely on this thing to make reservations and find restaurants and stuff. It really sucked having to walk a block down the road just to get a random free wifi signal, then plan ahead of time and google maps some other destination and leave it in cache so I can look at it again later.