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  • Jailbreak 4.2.1 with redsn0w 0.9.6b4


    MartiniBoy got out in front with this earlier today, but I just wanted to make sure the news was on the main page. The Dev-Team updated redsn0w to version 0.9.6b4 today, which, as Nick detailed yesterday, provides an untethered jailbreak of iOS 4.2.1 for iPhone 3G, older iPhone 3GS, and non-MC iPod touch 2G, and a tethered JB for the iPhone 3GS (new bootrom), iPhone 4, iPad, iPod touch 2G (MC model), iPod touch 3G and the iPod touch 4G. thanks to a combination of pwnage2 exploit, the arm7_go exploit, 24kpwn, and limera1n. For best results, upgrade to iTunes 10.1 first.

    Again, it's very important to note that if you unlock, you cannot use redsn0w as it will update your baseband. So if you're an unlocker, or have a newer iDevice and would just prefer the security of an untethered JB, wait for the PwnageTool update before loading 4.2.1. Even if you are ready (like I was) to take the plunge, make sure you back up your SHSH first.

    Source: Dev-Team Blog
    This article was originally published in forum thread: Jailbreak 4.2.1 with redsn0w 0.9.6b4 started by Paul Daniel Ash View original post
    Comments 284 Comments
    1. tw1zt3d's Avatar
      tw1zt3d -
      Quote Originally Posted by ricKKyblacKK View Post
      Id be very leery about jumping to the 4.2 from your 3.1.2...I did about 3 weeks ago using redsnOw (( 3.1.2 > 4.1 ))and its been REAL buggy ever since. Takes forever to load up text messages, contacts, etc. I'm wondering if the 4.2 will be the same.....so just be leery you may want to stay at 3.1.2 !

      That's kinda the reason i never left 3.1.2.. i always wait to hear something, but it just seems like every fw after 3.1.3 was horrible or not worth the time to update to... But i'm hearing 4.2 isn't all that bad on the 3G (not great, but apparently the most usable of the 4x firmware), so as usual I play the waiting game.
    1. thazsar's Avatar
      thazsar -
      Quote Originally Posted by mrdjflood View Post
      Can someone please explain to me why my iPhone 4 with firmware 4.1 and JB with limera1n is untethered and if i update to 4.2.1 its no possible to get an untethered JB?
      thanks in advance.
      Each update places a new set of obstacles for the JB Hackers!!! So ur ip4 filesystem can, technically, be accessed with this new 4.2.1 FW, but that's the extent of it until the Dev Team, Chronic Dev, comex, saurik, chpwn, Geohot, etc. figure out 'new' ways to present us with what ww r used to.

      Correct me if I'm wrong, k
    1. whereswaldo's Avatar
      whereswaldo -
      no untethered even if we have our 4.1 SHSHs saved?
    1. LearningMan's Avatar
      LearningMan -
      Quote Originally Posted by thazsar View Post
      @LearningMan
      If, for S&G (!), u open up limera1n and reinstall Cydia, you will see what I mean. BTW, greenpois0ns 'Loader' will not let u do this...
      That's kinda what made me draw the conlusion to begin with. I once got stuck in a "Connect to iTunes" screen on my iPad and just ran linera1n to kick it out (let it run to EOJ) and it worked fine.
    1. Happy Noodle Boy's Avatar
      Happy Noodle Boy -
      Jailbroke my 4 with no issues. Yeah, it's tethered but I can't recall the last time I rebooted when I wasn't near a computer so time to live in the danger zone I guess. My3G is the only thing that crapped out on me while installing.
    1. thazsar's Avatar
      thazsar -
      Quote Originally Posted by LearningMan View Post
      Thanks thazsar. That actually makes perfect sense.
      Sweet!
    1. LearningMan's Avatar
      LearningMan -
      Quote Originally Posted by whereswaldo View Post
      no untethered even if we have our 4.1 SHSHs saved?
      Pre-4.2.x SSH's have nothing to do with anything except being able to return to the previous version they were originally signed for.
    1. thazsar's Avatar
      thazsar -
      Quote Originally Posted by happy noodle boy View Post
      jailbroke my 4 with no issues. Yeah, it's tethered but i can't recall the last time i rebooted when i wasn't near a computer so time to live in the danger zone i guess. My3g is the only thing that crapped out on me while installing.
      LOL!!! Ur like Maverick or Goose or Iceman or Jester!!!
    1. EskimoRuler's Avatar
      EskimoRuler -
      I think I'll wait for untethered, just so much easier
    1. Happy Noodle Boy's Avatar
      Happy Noodle Boy -
      Quote Originally Posted by thazsar View Post
      LOL!!! Ur like Maverick or Goose or Iceman or Jester!!!
      [ame=http://www.youtube.com/watch?v=d3D7Y_ycSms]YouTube - archer - danger zone [hq][/ame]
    1. vindutch's Avatar
      vindutch -
      Quote Originally Posted by IphoneReaper View Post
      As others have awed does this require cydia patch or not????
      Quote Originally Posted by thazsar View Post
      LOL!!! Ur like Maverick or Goose or Iceman or Jester!!!
      More like Topper Harley
    1. thazsar's Avatar
      thazsar -
      Quote Originally Posted by Happy Noodle Boy View Post
      [ame=http://www.youtube.com/watch?v=d3D7Y_ycSms]YouTube - archer - danger zone [hq][/ame]
      How awesome is that!
    1. brianlg's Avatar
      brianlg -
      i keep getting the 1303 error and i cannot get out of recovery mode and into DFU. Never had this problem before, I can't even restore to the official 4.2.1. and tiny umbrella will not kick me out of rec. What the hell do i do

      edit: nm finally got dfu, here's hoping.
    1. thazsar's Avatar
      thazsar -
      Quote Originally Posted by vindutch View Post
      More like Topper Harley
      When I was little, my fav part in Part Deux was when he started throwing bullets to kill people!
    1. brbortscheller's Avatar
      brbortscheller -
      So does Cydia work with iOS 4.2.1? I have an iPod Touch 2G MB model on it and want to jailbreak. :-/
    1. thazsar's Avatar
      thazsar -
      Quote Originally Posted by brianlg View Post
      i keep getting the 1303 error and i cannot get out of recovery mode and into DFU. Never had this problem before, I can't even restore to the official 4.2.1. and tiny umbrella will not kick me out of rec. What the hell do i do
      Is ur host file changed to point to saurik? If so, delete it (the saurik line) and try again. Let us know...
    1. Taranis17's Avatar
      Taranis17 -
      Quote Originally Posted by brianlg View Post
      i keep getting the 1303 error and i cannot get out of recovery mode and into DFU. Never had this problem before, I can't even restore to the official 4.2.1. and tiny umbrella will not kick me out of rec. What the hell do i do
      I hope you mean 1033.

      Try RecBoot. I've found that sometimes one utility will work better than another with kicking you out of recovery mode.
    1. thazsar's Avatar
      thazsar -
      Quote Originally Posted by Taranis17 View Post
      I hope you mean 1033.

      Try RecBoot. I've found that sometimes one utility will work better than another with kicking you out of recovery mode.
      Agreed...try RecBoot first before u do my prior suggestion
    1. thazsar's Avatar
      thazsar -
      Has anyone tried limera1n for their 4.2.1 JB? I thought I read it works but Cydia wasn't updated at that time. I might try that tonight w/ my iPad.
    1. brianlg's Avatar
      brianlg -
      Quote Originally Posted by thazsar View Post
      Is ur host file changed to point to saurik? If so, delete it (the saurik line) and try again. Let us know...
      agh i think this is the problem.

      edit: yep, that was it. Thanks a lot! That never crossed my mind.