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  • "Backup Plan:" Untethered 4.2.1 JB Coming for All Devices
    [ame=http://www.youtube.com/watch?v=WVZ5MDPVHWU]YouTube - Untethered 4.2.1 JB on ipt4g[/ame]


    A tweet from @MuscleNerd last night revealed a workaround he's done for an untethered jailbreak of iOS 4.2.1 on the fourth-gen iPod touch. Using saved SHSH blobs from 4.2 beta 3, the method doesn't use expose any of the known holes that are used in the current set of exploits: it's a "backup plan" to the userland method that @comex is working on.



    @MuscleNerd's method can be generalized for use with all devices (including the Apple TV 2G) and is reusable for future jailbreaks. @comex's method is, he says, "more extensible" though.

    No updates yet as to when this will be released, but we'll let you know as soon as we find out.
    This article was originally published in forum thread: "Backup Plan:" Untethered 4.2.1 JB Coming for All Devices started by Paul Daniel Ash View original post
    Comments 92 Comments
    1. chief_bignut's Avatar
      chief_bignut -
      Making good progress
    1. vantheman169's Avatar
      vantheman169 -
      sweet, untethered for my iPad will be nice, but not a huge deal as i dont reboot or let the 10+ hour battery die hardly ever. But untethered is always nice. Thanks iPhone Dev team for delivering as usual!
    1. Mookest's Avatar
      Mookest -
      I'm always glad to see good progress. I very much appreciate the hard work and dedication that all the jailbreakers put in to keep our firmwares updated and free from restrictions for all. Thank You guys.
    1. Cowboy's Avatar
      Cowboy -
      Love how he didnt even use his on video making rules lol
    1. shitake83's Avatar
      shitake83 -
      dont ask how but i managed to do it 2 days ago with my 3gs
      but hell yeah this sounds great.
    1. vedavis's Avatar
      vedavis -
      Just when you think that there is no JB news, MuscleNerd comes up with the backup plan. Maybe JLo will promote it. (I know it's lame, but funny.)
    1. mortopher's Avatar
      mortopher -
      Interesting.
    1. swifty7's Avatar
      swifty7 -
      is Geohot still in the scene or has he lost interest again?
    1. DougWare's Avatar
      DougWare -
      I'm really looking forward to this. I appreciate all the work the JB community puts into making jailbreaks better all the time.

      The 4.2.1 is the first tethered jailbreak I've used, it's pretty easy most of the time to plan on not rebooting your phone until you can tether it.

      However, when I woke up yesterday my phone had apparently rebooted overnight and was stuck on the apple screen. Since I rely on NightStand to wake me up, it could have been a minor issue for me.

      Thanks for all your work!

      Doug
    1. mortopher's Avatar
      mortopher -
      Quote Originally Posted by shitake83 View Post
      dont ask how but i managed to do it 2 days ago with my 3gs
      but hell yeah this sounds great.
      Post a video to prove it. Otherwise, you're full of it.
    1. shitake83's Avatar
      shitake83 -
      asa i get home ill make one especially for you. geeeeez. now even jailbreakers start hateration.
    1. mortopher's Avatar
      mortopher -
      It's a vBulletin classic: Pics or Shens.
    1. shitake83's Avatar
      shitake83 -
      im at work. my girlfriend wont be home until 10pm, but thats no prob for you, youre time is behind mine anyway . ill video it for you.

      what exactly do you want me to show you ??
      go into about , show the baseband and version and then restart the phone ??
    1. zinjen's Avatar
      zinjen -
      Quote Originally Posted by shitake83 View Post
      im at work. my girlfriend wont be home until 10pm, but thats no prob for you, youre time is behind mine anyway . ill video it for you.

      what exactly do you want me to show you ??
      go into about , show the baseband and version and then restart the phone ??
      No, I would love to here in detail how you did it.
    1. shitake83's Avatar
      shitake83 -
      My "problem" starts on page 2 post #23 , thats where i started you can read everything i did in this thread.

      just to remind you i started with a black screen dfu loop. so i had some of the worst things that can happen ^^

      3GS stuck in recovery loop
    1. gotanmp3's Avatar
      gotanmp3 -
      Quote Originally Posted by mortopher View Post
      Post a video to prove it. Otherwise, you're full of it.
      Probably has an old bootrom 3GS. The process (for retaining baseband) on that one basically amounts to creating a custom firmware with pwnagetool (uncheck activate phone), restoring the custom firmware in pwned DFU mode and then running the latest Redsn0w when it finishes.

      I'm surprised old bootrom 3GS iPhones have become so rare that people have begun to doubt their existence.
    1. haibane's Avatar
      haibane -
      How did he get cydia to load so fast? Mine takes about 2 minutes usually
    1. shitake83's Avatar
      shitake83 -
      i have a new bootrom, as stated in the thread. please read carefully before making statements. and yeah the way youre describing was my way. and if you READ! carefully you can see that i NEVER saved SHSH for that particular phone so , if you READ you will see that i did NOT retain my baseband. i would have liked to but sometimes thats how things go.

      Quote Originally Posted by haibane View Post
      How did he get cydia to load so fast? Mine takes about 2 minutes usually
      which phone do you have ?? if you have a 3G its normal to load long. but theres a solution to speed it up.
      go to categories-> edit , take out ALL the themes and sh*t you dont need and it will not update all the things in cydia AND will finally boot quicker.



      Im always kinda pissed when i work on my GFs iPhone 3GS and cydia boots up in like 10seconds.
    1. gthugballin's Avatar
      gthugballin -
      Quote Originally Posted by swifty7 View Post
      is Geohot still in the scene or has he lost interest again?
      he will come back when he gets more attention, like jail breaking ios 5 on the iphone 5
    1. shitake83's Avatar
      shitake83 -
      Quote Originally Posted by gthugballin View Post
      he will come back when he gets more attention, like jail breaking ios 5 on the iphone 5
      yeah thats what i think he will do.