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The iPhone Dev Team has released new information regarding iOS 4.2.1 jailbreak and unlock situation, ... Apple iPhone forum

  1. #1
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    Lightbulb iOS 4.2/4.2.1 Jailbreak and Unlock Update !**Up date info greenpoison!!!!!!

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    The iPhone Dev Team has released new information regarding iOS 4.2.1 jailbreak and unlock situation, which is as follows:


    With Turkey Day a few days off, today Apple publicly released FW version 4.2.1. As always, ultrasn0w unlockers please stay far far away from this official firmware (and all official firmware). Wait for the ability to create custom 4.2.1. IPSWs that don’t update your baseband! If you’re not an unlocker, read on!

    The best news of all is for owners of iPhone3G, older iPhone3GS, and non-MC iPod touch 2G. Due to a combination of our original pwnage2 exploit, the arm7_go exploit, 24kpwn, and limera1n, your device is “just as jailbreakable as ever.” You reap the full benefit of an untethered 4.2.1 jailbreak.

    Next are the owners of all the more recent devices. The good news there is that due to geohot’s limera1n exploit, all recent devices can be jailbroken (this will be true until Apple released new hardware that fixes geohot’s limerain exploit in the bootrom). The bad news is that right now, the 4.2.1 jailbreak is *tethered* on all of these recent devices. A tethered jailbreak means that each time your device loses battery power or needs to be rebooted, you must attach it to a PC or Mac to boot into the jailbroken state. @comex is working hard on a method that may untether the 4.2.1 jailbreak, but it will require you to have your 4.1 SHSH blobs in order to use it. No word on how much more effort it will take though (please don’t bug @comex about it!). (We also have an alternative method that may work, but @comex’s method is much more elegant.)

    So when does all this 4.2.1 jailbreak action happen? Well if you’re a JB developer or tinkerer, you’ve already probably used the redsn0w mentioned in our last post to jailbreak 4.2.1 and at least get SSH working. But beyond that, there are still some last minute issues with MobileSubstrate and comex’s kernel patches that are being fixed. We’ll tweet and post a blog update when it’s all available (we hate to give ETAs, but barring any unforeseen problems, probably later today).

    In the meantime, please make sure you have your 4.1 SHSH blobs for all your devices. These will be important even for firmware beyond 4.1 (using both comex’s method and our alternative, depending on how each of them turn out.)

    ultrasn0w unlock: After redsn0w is officially released with the new Cydia and kernel patches, we’ll be able to assess the unlock situation. It’s already looking very promising though, so expect the unlock for the 3G and 3GS to be coming this week. The i4 unlock is taking more effort though, and no further concrete info is available about that yet.

    Feel free to ask questions in our comments section below, where we’ve got some awesome new additional moderators — sherif_hashim, dhlizard, and Frank55!

    To cut the long story short, since iOS 4.2.1 released today for iPhone, iPod touch and iPad is the same build which was released to developers as GM last week, therefore the updated Redsn0w 0.9.6b3 jailbreak works for all the mentioned iOS devices,
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    The well known iPhone developer and hacker Joshua Hill of the Chronic Dev Team has provided an ETA for the arrival of updated GreenPois0n jailbreak tool for the newly released iOS 4.2.1 firmware. For those of you who don’t know, GreenPois0n is based on Geohot’s Limera1n bootrom exploit which has already pwned all current iOS devices for life. The only problem is that it is a tethered jailbreak, which means you will have to boot it into a “jailbroken state” using a tool like Redsn0w on every reboot.


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    GreenPois0n iOS 4.2.1 Tethered Jailbreak to Release Within a Few Days


    GreenPois0n should be updated to support 4.2.1 (tethered or semi tethered, within a few days.

    This so called tethered or semi-tethered jailbreak however only applies to the new devices like: iPhone 3GS (new bootrom), iPhone 4, iPad, iPod touch 2G (MC Model), iPod touch 3G and the iPod touch 4G. Old devices like iPhone 3GS (old bootrom), iPhone 3G and iPod touch 2G (Non-MC Model) can be jailbroken-untethered right now using tools such as Redsn0w

    iLord is DEAD!


  2. #2
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    Redsnow has a 9.64b ver out to jailbreak all but for newer idevices it will be a tethered JB
    3G /3GS are suppose to be untethered old bootrom only.

    I myself will wait for an untethered JB

  3. #3
    sooner's Avatar
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    That was what I said.


    This so called tethered or semi-tethered jailbreak however only applies to the new devices like: iPhone 3GS (new bootrom), iPhone 4, iPad, iPod touch 2G (MC Model), iPod touch 3G and the iPod touch 4G. Old devices like iPhone 3GS (old bootrom), iPhone 3G and iPod touch 2G (Non-MC Model) can be jailbroken-untethered right now using tools such as Redsn0w

    iLord is DEAD!


  4. #4
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    I was mostly concerned about how to preserve my Cydia apps and installous apps when I upgrade. Does anyone have any suggestions?
    I've looks online and I keep seeing aptbackup but that isn't available for 4.1 OS (at least I don't think it is).

  5. #5
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    SSH into yor phone and go to applications and save all files to desktop that are Cydia apps. Upgrade and SSH back to Applications and drag files to that same location.

    iLord is DEAD!


  6. #6
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    Quote Originally Posted by sooner View Post
    SSH into yor phone and go to applications and save all files to desktop that are Cydia apps. Upgrade and SSH back to Applications and drag files to that same location.
    I'm going to have to look this up. Although I have SSH on my device, I'm not quite sure how to use it properly

  7. #7
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    An easier method is Download Afc2add from Cydia. then on ur COMPUTER download iPhone browser. Much easier method. Run iPhonebrowser on PC plug in phone and ur ready.

    iLord is DEAD!


  8. #8
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    Quote Originally Posted by sooner View Post
    That was what I said.


    This so called tethered or semi-tethered jailbreak however only applies to the new devices like: iPhone 3GS (new bootrom), iPhone 4, iPad, iPod touch 2G (MC Model), iPod touch 3G and the iPod touch 4G. Old devices like iPhone 3GS (old bootrom), iPhone 3G and iPod touch 2G (Non-MC Model) can be jailbroken-untethered right now using tools such as Redsn0w
    I know you said it,I was just adding the Redsnow option
    and this just in ...........
    MuscleNerd of the iPhone Dev Team has just tweeted that Ultrasn0w unlock is on it’s way and you’ll be free at last. The unlock for iPhone 3G and iPhone 3GS on baseband 05.14.02 (iOS 4.1) and baseband 05.15.04 (iOS 4.2.1) will be released this Sunday.
    Iphone 4 a longer wait

    If someone has posted this all ready pls disregard

  9. #9
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    Ahh, Sorry. I heard bout the unlock. great news. I have nevr been interested in Unlock since I am AT&T. But I should be. Thanks 3P.

    To all, Happy Thanks Gvn day. Let the ball games begin.

    iLord is DEAD!


  10. #10
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    Dont know if its posted yet
    Unlock for 3G/3Gs is out , You have to upgrade your baseband to unlock

    http://blog.iphone-dev.org/

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