Redsn0w - Jailbreak iOS 4.2.1 (iPhone 3G / 3GS / 4, iPad, iPod Touch 2-4G)

Update: iOS 4.2.1

Redsn0w 0.9.6b ../ rc .. -
NOT tethered jailbreak - iPhone 3G, iPhone 3GS (old bootrom), iPod touch 2G (not MC)
Tethered jailbreak - iPhone 3GS (new bootrom), iPhone 4, iPod Touch (2G (MC) , 3G, 4G), iPad

Redsn0w 0.9.7b .. -
* Only for Mac-user, one must have saved SHSH 4.2b3 in Cydia
NOT tethered jailbreak iPhone 4, iPad and iPod Touch 4

Attention! Unlock iOS 4.2.1 is possible only on the iPhone 3 G and some iPhone 3GS
Sew so zalochenny iPhone 3GS (old boot) or iPhone 4 get BRICK



FAQ on installing and Jailbreak iOS:

Before proceeding to action, read the entire FAQ!


Unbound Jailbreak. iPhone 3G, iPhone 3GS (Old boot ), iPod touch 2G (MB)

  • Update iTunes to the latest version, you can download iTunes 10.1 HERE
  • Install iOS 4.2.1 on your iPhone, (it is desirable to set up a "NEW")
  • Getting jailbreak with RedSn0w

    • Download Redsn0w 0.9.6rc8 For Windows HERE
    • Download Redsn0w 0.9.6rc8 For Mac HERE

Not tethered jailbreak. (One must have SHSH 4.2b3 in Cydia, only for iPhone 4, iPad and iPod Touch 4)
Download Redsn0w 0.9.7b6 for Mac HERE


  • Download the official iOS 4.2.1 via iTunes, or HERE

    iTunes stores downloaded firmware on this path:
    • for Windows XP C: \ Documents and Settings \ username \ Application Data \ Apple Computer \ iTunes \ iPhone Software Updates
    • the Windows Vista Start \ username \ AppData \ Roaming \ Apple Computer \ iTunes \ iPhone Software Updates
    • for Windows 7 Setup \ username \ AppData \ Roaming \ Apple Computer \ iTunes \ iPhone Software Updates
    • for Mac OSX \ username \ Library \ iTunes \ iPhone Software Updates

  • Close iTunes !!!
    Run RedSnow (on Win 7 run with the rights of the Administrator and the compatibility mode to XP SP3). Click Browse and in the window that opens, select the iOS 4.2.1 firmware
  • Hit Next. To continue Redsn0w recommends to switch off the phone (hold the Power button on the phone and holding on the appeared slider).

    Using the checkboxes, select the required components:

    • Install Cydia - Cydia installer fill in the device. Without this 90% Jail loses meaning;
    • Verbose boot - text download mode . At the start of the device instead of the bull's-eye, you will see the diagnostic messages on a black background. Ordinary users (and neryadovoe too), this option is not required;
    • Install iPad baseband - the installation of the iPad modem (06.15.00), which lends itself to unlock using Ultrasn0w 1.2 (old modem back will not be possible !!!);
    • Custom boot logo - can replace apple when booting any other picture. When installing a tick box will appear once in which you need to specify an image file for a replacement (only PNG, it is desirable to 320,480 and not more than 100KB of weight?);
    • Custom recovery logo - the ability to replace the iTunes logo and lace, which are shown at the start of the device in recovery mode, to any other picture. The requirements are the same as for the boot logo;
    • Enable multitasking (visible only option for iPhone 3G and iPod Touch 2G) - activate multitasking at the cost of strong braking system;
    • Enable homecreen wallpaper (visible only option for iPhone 3G and iPod Touch 2G) - activate the wallpaper desktops. Also leads to braking;
    • Enable battery percentage (visible only option for iPhone 3G and iPod Touch 2G) - activate the display battery percentage. Unlike the previous two options, to negative consequences does not (To activate: Settings -> General -> Statistics -> battery);
    • Just boot tethered right now - the option is useful only if your device refuses to be included after the restart. Selecting this option removes all the top tick;
    • Just enter pwned DFU mode right now - option is needed if you need simply enter the device in DFU mode. Selecting this option removes all the top tick.

    * Including wallpaper and multitasking on iPhone 3G and iPod Touch 2G recommend NOT (ie. A. Do not have enough hardware resources of the phone)

  • Hit Next,
    Next, you need to switch your phone into DFU mode by following the instructions on the screen:
    • Hold the Power button for 3 seconds.
    • Without releasing the Power button we press the Home button for 10 seconds.
    • Releasing the Power button but continue to hold Home for 30 seconds.
    • When you see a white screen let go of both buttons.

  • It remains only to wait a bit (on the phone screen will appear Downloading Jailbreak Data ..., then running "Pineapple", after the jailbreak is complete phone reboot). If Redsn0w flew, simply repeat step 7.
  • If Cydia shortcut is displayed in white, then repeat the claim 5, claim 6 only put a check on the item «Just boot tethered right now», after the completion of Ceyla get a working version of Cydia.
    Do not forget to go to Cydia and install all offered updates:

    • Do not run Cydia on your phone is no connection to the internet, EDGE or WiFi.
    • Verify or configure the Internet connection, and then run Cydia.
    • Cydia will begin reorganizing wait until after the end of the reorganization Cydia will close itself, and you will throw the desktop.
    • Launch Cydia again (the question Who Are You? Answer Hacker (+ Command Line)) and you'll see important updates for Cydia, install them (Complete Upgrade)


    Tethered Jailbreak. iPhone 3GS (New boot), iPod Touch 2G (MC), iPod Touch 3G, iPod Touch 4G, iPhone 4, iPad (in the absence of a Mac-and SHSH 4.2b3)

    Using the same instructions as for the iPhone 3G, iPhone 3GS (Old boot ), iPod touch 2G (MB) only on the output we get Tethered Jailbreak.

    "At the moment, to make a jailbreak, you can only" tethered "method. This means that each time you disable (or full discharge) devices have to connect it to a computer with installed Redsn0w and undergo all the breaking procedure again (leaving only one option" Just boot tethered right now "). Otherwise they will not be able to return to life iDevices."


    Unbound Jailbreak. iPhone 4, iPod Touch 4G, iPad (only with the Mac-PC and saved SHSH 4.2b3!) This untethered jailbreak uses or ECID SHSH blobs 4.2b3 (iOS 4.2 beta 3) certificate. To check the SHSH blobs from the third beta version of iOS 4.2 launch Cydia and wait until the download is complete the home page. On the inscription "SHSH: 4.2b3" should appear
    Using the same instructions as for the iPhone 3G, iPhone 3GS (Old boot ), iPod touch 2G (MB) only for a place Redsn0w 0.9.6 We use Redsn0w 0.9.7b6:

    Download Redsn0w 0.9.7b6 for Mac HERE

    Attention! In the 5th paragraph after specifying the iOS 4.2.1 firmware, press Next, further vyberaem Jailbreak Monte option and select the firmware file iOS 4.2 Beta 3


    PS
    For acceleration work firmware 4.0.1 - 4.2.1 on iPhone 3G and iPod Touch 2G recommended:
    • disable wallpaper
    • disable the multitasking
    • disable search Spotlight (Settings - Basic - "home" button - search the Spotlight - remove all ticks and reboot)
    • from time to time to reboot the phone by holding Home and Power buttons for 10 seconds, until the phone turns off


    Enable / disable wallpaper and / or multitasking. (News for iPhone 3G)
    Install the application from zToggle ripozitoriya BiggBoss in Cydia.


    The file manager with support for iTunes update iFunBox


    All your actions with the phone, you do at your own risk!


    To be able to have in future firmware untethered Jailbreak (Jailbreak)
    I recommend to save SHSH-certificates !!!



    Frequently asked Questions:



    If Redsn0w hangs on «Uploading ramdisk» message, and the inscription phone screen lit «downloading jailbreak data» and nothing happens more than 5 minutes

    • Run Redsn0w file on behalf of the Administrator mode and compatibility with XP SP2 / 3.
    • Perhaps the firmware file is not completely downloaded. Download .ipsw firmware file from scratch or from an alternative source.
    • Redsn0w on some configurations may hang due to the use of multi-core processors. Open the "Task Manager" in the "processes" find «Redsn0w.exe», the Select "Set line ... / SetAffinity», leave the check box only for "TSP0 / CPU0" from the context menu.


    With the iPhone 4 and Mac-PC can I save SHSH-certified by the firmware on iOS 4.2b3, for further use untethered?

    • No! Subscribe to SHSH-certificates below iOS 4.2.1 has already been closed.


    When will the full Jeil? When waiting Jail under windows?

    • Follow the news on the site and forum shram.kiev.ua, as soon as a new solution, you'll know about it first.


    After the firmware and install all the updates in the Cydia, she stopped running, just does not work Safari

    • Follow 9-th point instructions
    • To flash the device again, strictly observing the instructions points


    During firmware appeared xxxx error in iTunes



    After jailbreaking and reboot your device on the screen lights up white apple.

    • Most likely, your device does not support the untethered jailbreak.
      Each time you disable (or full discharge) devices have to connect it to a computer with installed Redsn0w and go through the entire procedure again break (leaving only one option "Just boot tethered right now»)


    How do I find my version BootRoom iPhone 3GS?

    • The serial number of the device (Settings -> General -> About)
      Example: 87022Z635NQ
      We are interested in 3 th 4 th and 5 th digit:
      022 xx xxxxxx
      3 th digit year ( "9" -2009, "0" -2010)
      4.5 th week numbers - up to the 40th week of 2009 BootRoom old
      Above the 41 th week of 2009. or the full year 2010, BootRoom new!
      If you have a Border week (40-41) is better to use the program described below.
    • With iDetector program

      Picture
      • download the iDetector
      • if not installed Java, then we go to java.com, download and install the latest version
      • translate the phone in DFU mode (7-point instructions)
      • run iDetector, click the button, we learn bootrom version
      • to exit DFU again we press Home + Power button.


    Is it possible to lower the version of the modem firmware downgrade by (SHSH saved)?

    • No, the modem version does not fall!


    How do I sew zalochenny 3G / 3GS phone on iOS 4.1-4.2.1 with iPad-ovsky modem (06.15.00)?

    • The modem version 06.15.00 has a version higher than any of the modems of all issued at the moment firmware 3G phones and 3GS, and so the factory firmware update phone via iTunes to your phone will will fail under the number 1015, and the phone will remain in the mode of "recovery" (recovery ) from which to pull it is not so easy.
      And since you have already installed the modem 06.15.00, phone jailbroken and you want to restore the firmware for this follow these simple steps:

      • A) If you use the utility of PwnageTool to jailbreak, then use this utility to create custom firmware version 4.1 or 4.2.1, when the program asks you to install BB (modem) 06.15.00 should refuse it. Complete the custom firmware using iTunes and flash the phone.
      • B) if you are using RedSn0w, then you have two options:
        • B-1) if you already have firmware 4.1, 4.1 sewn again, and when the screen displays a window with an error №1015, running Tiny Unbrella and output of the phone mode "recovery" (recovery mode). After this run of Redsn0w, follow its instructions, and when you reach the set of checkboxes, not to celebrate the installation of the modem 06.15.00, because it is you already have.
        • B-2) If you already have 4.2.1, then you need to be sewn 4.1 (4.2.1 because it will not let you bring the phone out of the regime "recovery", because it has already been added to the stupid test line modem / OS ie, for example, for iPhone 3G, iOS 4.2.1 modem must be 05.15.02 and not any other), they also follow the instructions in paragraph B-1. If you want sewn firmware 4.2.1, then you have only one option - to create a custom firmware for instructions point A, other ways not currently exist.