• Your favorite

    Apple

    ,

    iPhone

    ,

    iPad

    ,

    iOS

    ,
    Jailbreak
    , and
    Cydia
    site.
  • iOS 4.2.1 Does Baseband Checks; ultrasn0w Out By Sunday?


    Apple has defeated TinyUmbrella's iPhone 4 baseband protection by implementing a boot level signature check in iOS 4.2.1. It's probably unnecessary to reiterate the warning that's been out there since before the upgrade dropped, but unlockers should really, really avoid upgrading. Meanwhile, MuscleNerd wishes everybody a happy Thanksgiving, and says he thinks the next version of ultrasn0w may be ready, at least for some users, as soon as Sunday.

    Adventurous unlockers have already found that if they try to run iOS 4.2.1 on a device with an older baseband, it will show the message "An unknown error has occurred" and go into recovery mode. TinyUmbrella is no longer able to kick iPhones out of recovery for iOS 4.2.1 because the baseband nonce is now checked, just like the SHSH is checked for firmware revs. So at this point there's no way out of that except to install the new baseband (killing the unlock) or downgrading to iOS 4.1 (assuming one has saved SHSH blobs).

    Help is on the way, though. MuscleNerd tweeted from the Thanksgiving table this morning to say he's making good progress on ultrasn0w. iPhone 3G and 3GS unlockers may have a working ultrasn0w by "Sunday/Funday;" iPhone 4 users will have to wait a little longer.

    Source: Twitter
    This article was originally published in forum thread: iOS 4.2.1 Does Baseband Checks; ultrasn0w Out By Sunday? started by Paul Daniel Ash View original post
    Comments 116 Comments
    1. vantheman169's Avatar
      vantheman169 -
      Unlock is released its for iphone 3g/3gs for new Basebands on 4.1-4.2.1
    1. GrandMstrBud's Avatar
      GrandMstrBud -
      Waiting for iPhone 4 unlock myself
    1. vantheman169's Avatar
      vantheman169 -
      not waiting for an unlock at all...i am unlocked on 4.1 via Pwangetool from 4.0.1 and i will be staying at 4.1 for sure.
    1. JSkywalker217's Avatar
      JSkywalker217 -
      Quote Originally Posted by vantheman169 View Post
      Unlock is released its for iphone 3g/3gs for new Basebands on 4.1-4.2.1
      Can you be a little more specific? Like a link or more info. I like the attitude but I rather have the action.

      Sunday Funday? My ***.
    1. Simon's Avatar
      Simon -
      Quote Originally Posted by JSkywalker217 View Post
      Can you be a little more specific? Like a link or more info. I like the attitude but I rather have the action.

      Sunday Funday? My ***.
      All info can be found here: Dev-Team Blog
    1. Agudan's Avatar
      Agudan -
      http://blog.iphone-dev.org/ has the answers for the 4.1 & 4.2.1 3G/3GS unlock (Mac only for now)
    1. Simon's Avatar
      Simon -
      Not Mac only anymore, read update #2
    1. GrandMstrBud's Avatar
      GrandMstrBud -
      Where is the iPhone 4 love?
    1. Simon's Avatar
      Simon -
      Quote Originally Posted by GrandMstrBud View Post
      Where is the iPhone 4 love?
      Hopefully coming soon
    1. Jeffwo's Avatar
      Jeffwo -
      Does redsn0w jailbreak and unlock?

      Why is the ipsw file called ipad1.....
    1. zphone's Avatar
      zphone -
      Quote Originally Posted by Jeffwo View Post
      Does redsn0w jailbreak and unlock?

      Why is the ipsw file called ipad1.....
      redsnow jailbreaks your phone.. once you jailbreak you can install ultrasnow to unlock
    1. CaptainChaos's Avatar
      CaptainChaos -
      Quote Originally Posted by Jeffwo View Post
      Does redsn0w jailbreak and unlock?

      Why is the ipsw file called ipad1.....
      Redsnow does the jailbreak that injects the iPads baseband into your phone which is then unlocked with ultranow in Cydia.
    1. Jeffwo's Avatar
      Jeffwo -
      If I'm on 4.1 now, should I update to 4.2.1 before running redsn0w?
    1. CaptainChaos's Avatar
      CaptainChaos -
      Quote Originally Posted by Jeffwo View Post
      If I'm on 4.1 now, should I update to 4.2.1 before running redsn0w?
      Yes. http://www.iclarified.com/entry/index.php?enid=12949
    1. Jeffwo's Avatar
      Jeffwo -

      That's for 3GS...This is the link for the 3G on 4.2.1 Jailbreak and Unlock

      iClarified - iPhone - How to Jailbreak and Unlock Your iPhone 3G Using RedSn0w (Windows) [4.2.1]
    1. CaptainChaos's Avatar
      CaptainChaos -
      Thanks. I have corrected my post.