Cziriblog

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So as it turned out, the Verizon iPhone 4 is vulnerable to Limera1n bootrom based exploit, and untethered GreenPois0n kernel based exploit which makes it possible to jailbreak on iOS 4.2.6, untethered using GreenPois0n RC5.4.

The following instructions will help you jailbreak your CDMA based iPhone 4 untethered on Verizon using the latest version of GreenPois0n.

Step 1: Download GreenPois0n from the link given below.

Step 2: Connect your Verizon CDMA iPhone 4 via USB to your computer and click on “Jailbreak” as seen in the screenshot below.

Step 3: Now follow the following onscreen instructions to enter DFU mode:

* Press and hold the sleep button for 2 seconds
* Continue holding sleep; press and hold home for 10 seconds.
* Release sleep button; continue holding home for 15 seconds.

Step 4: GreenPois0n will now start “Jailbreaking” your iPhone, untethered on 4.2.6.

Step 5: Your iPhone should now be successfully jailbroken on iOS 4.2.6. Now start “Loader” found on the homescreen and install Cydia.

This is it! You are done



Note: The video embedded above was shot when GreenPois0n RC5 was first released. The procedure shown in the video is exactly same for jailbreaking Verizon iPhone 4

Download GreenPois0n RC5.4
Download iOS 4.2.6 for Verizon iPhone 4
Download iTunes 10.1.2 for Windows and Mac

Chronic Dev Team has finally released the much awaited GreenPois0n RC5 which brings full untethered iOS 4.2.1 jailbreak for all iOS devices. Unlike Redsn0w 0.9.7, GreenPois0n RC5 doesn’t require you to have SHSH blobs of 4.2b3 saved on Cydia. You can jailbreak any iOS device out of the box on iOS 4.2.1 using this latest version of GreenPois0n.

The following instructions will help you jailbreak iOS 4.2.1 on iPhone 4, 3GS, iPod touch 2G/3G/4G, iPad and Apple TV 2G using GreenPois0n.

NOTE: If your iPhone 4 rely on an unlock, do not update to iOS 4.2.1 yet as doing so will upgrade your baseband, making it impossible for now to unlock.

Step 1: Download GreenPois0n from the link given below.

Step 2: Connect your iPhone via USB to your computer and click on “Jailbreak”

Step 3: Now follow the following onscreen instructions to enter DFU mode:

* Press and hold the sleep button for 2 seconds
* Continue holding sleep; press and hold home for 10 seconds.
* Release sleep button; continue holding home for 15 seconds.

Step 4: GreenPois0n will now start “Jailbreaking” your iOS device untethered on 4.2.1

Step 5: Your iPhone, iPad or iPod touch should now be successfully jailbroken on iOS 4.2.1. Now start “Loader” found on the homescreen and install Cydia

This is it! You are done !

Download: http://greenpois0n.com/

Members of Chronic Dev Team have just confirmed that the upcoming GreenPois0n RC5 untethered jailbreak for iOS 4.2.1 will support animated custom boot logo on iPhone, iPad and iPod touch. Video after the break.

Also as already confirmed before, GreenPois0n RC5 will support all devices, including, iPhone 4, 3GS, iPod touch 2G/3G/4G and iPad for untethered iOS 4.2.1 jailbreak without needing any SHSH blobs saved on Cydia.

The iPhone Dev Team has announced the iOS 4.2.1 jailbreak public beta testing program. We know several are letting their steam off in comments. But hey, look at the bright side the tools are being tested publicly instead of being left out without any hope or update about the jailbreak.
This beta testing is limited only to those who:
- Own Mac
- has iOS 4.2 beta 3 SHSH blobs backed up with Cydia
- Completely aware with the iOS jailbreak process steps
- Ready to risk their Carrier Unlock until a final working version is released
- Intended for iPhone 4, iPod touch 4 and iPad
This is not meant for average users, I repeat – this is NOT meant for average users. If you plan to go ahead then you’re on your own. You’ll just end up tearing your hair and turning your device into a paperweight. For performing the beta test, you need to download the USBMUX software from here along with dependent files mentioned on the page.

Here are few pointers for using the “backup method” aka Jailbreak Monte put up by iPhone Dev Team:

- This is a beta tester program. It’s not a general release!  Things can go very wrong, so please don’t even consider testing if you have pictures or other media on your device that you haven’t backed up!
- For the same reason, please don’t participate if you rely on the ultrasn0w carrier unlock.  Wait for the final version!
- Until we fix some sandbox issues with bluetooth, the bluetooth functionality is disabled.
- This very first beta1 is limited to iPhone4, iPad, and iPod touch 4G.
- Cydia must have your 4.2b3 SHSH blobs saved on file.  (As we approach a general release, we’ll provide a way to let you use locally saved hashes too).
- You must already have the usbmuxd software installed and running on your Mac (this requirement will eventually go away too). The correct invocation of the relay is just as that page says: “./tcprelay.py -t 22:2222”.  If the relay isn’t installed or running correctly by the time the redsn0w ramdisk has started, you’ll need to restore to stock FW again to try it again.  Please test it beforehand to save yourself some time!
Bunch of other dev teams are also working on their own version of jailbreak but it’s not about “Me First” any more. It’s about rolling out a jailbreak that works for all devices flawlessly.

Over the Christmas weekend we’ll be releasing a version of redsn0w that implements the “backup plan” to the 4.2.1 untethered jailbreak. We’re seeking your help to test this redsn0w and find any bugs before we do a general release! (If you have an iPhone 3G, or an old-bootrom ipt2g or iPhone 3GS, you already have an untethered jailbreak! Just use the latest public redsn0w.)
To keep things manageable, this will be a Mac-only test program. We also request that any volunteers *NOT* need the ultrasn0w unlock (in case things go very wrong)

Right now, the “backup plan” requires that you have the 4.2b3 IPSW on your Mac, and that Cydia has your 4.2b3 SHSH hashes. Please don’t pirate that 4.2b3 IPSW! (We’re also working on a way that this technique might apply to all those with 4.1 IPSWs, but that’s not the first goal right now.)

If you fit all the above qualifications, please follow @redsn0w_testers on twitter for announcements, and use the comments section here for feedback. Thanks very much for your help, and Happy Holidays!

The iPhone Dev Team has just released Redsn0w 0.9.6b4 today which brings first proper jailbreak, with working Cydia and MobileSubstrate for all iOS 4.2.1 devices.
For those of you who don’t know, Redsn0w 0.9.6b4 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” on every reboot. This so called tethered or semi-tethered jailbreak condition in Redsn0w 0.9.6b4 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 this latest version of Redsn0w. So until and unless Comex of Spirit and JailbreakMe fame comes up with another untethered hack for iOS 4.2.1, the jailbreak we get for the newer devices will be tethered (or semi-tethered).

NOTE: Those of you who rely on a carrier unlock MUST STAY AWAY from Redsn0w and iOS 4.2.1.
Follow the step by step instructions posted below to jailbreak iOS 4.2.1 with Redsn0w 0.9.6b4:
Step 1: Download iOS 4.2.1 for your version of iOS device.
Step 2: Update/Restore to iOS 4.2.1 firmware using the IPSW file you just downloaded via iTunes 10.1.
Step 3: Start Redsn0w 0.9.6b4 and point it to iOS 4.2.1 firmware to proceed with the jailbreak.


Step 4: Now select “Install Cydia” and click “Next”. Optionally (if available), you can also select any other option you like.


Step 5: Now make sure your device is both OFF and PLUGGED IN to the computer before you click “Next”.

At this stage you will be presented with a screen where you will have to quickly hold “Power” button and then while holding the “Power” button, you will now have to hold “Home” button too. Now after few seconds release “Power” button but keep holding “Home” button until installation begins.

Step 6: Sit back and enjoy while redsn0w will do all the rest for you. Once done, your iPhone or iPod touch will restart automatically and you will find it jailbroken on the latest iOS 4.2.1 firmware.
For iPhone 4, 3GS (New Bootrom), iPod touch 4G / 3G / 2G, iPad ONLY:
Step 7: Now from here onwards, whenever you want to do anything related to jailbreak like SSHing into your device, or running Cydia, you must first run your device in the so called “jailbroken state” on every reboot by using “Just boot tethered right now” option in Redsn0w.

UPDATE 1: Video tutorial is up!

Download iOS 4.2.1 for iPhone 4, 3GS, 3G, iPad, iPod touch
Download Redsn0w 0.9.6b4 for Windows
Download Redsn0w 0.9.6b4 for Mac
Download iTunes 10.1 for Windows or Mac
You can follow me on Twitter or join our Facebook fanpage to keep yourself updated on all the latest iPhone jailbreaking and unlocking releases.

MuscleNerd of the iPhone Dev Team has confirmed that he has got untethered jailbreak working on the latest iOS 4.2.1 firmware. He further explains that this a “backup” plan to Comex’s upcoming userland method and that it is generalizable.


In the description of the video, which was used MuscleNerd specifies the kernel version 4.2 beta 3 of IOS in order to successfully run the Jailbreak Untethered, since it is vulnerable all'exploit Star comex used in Spirit, in Jailbreakme and jailbreak iOS4.1; in this way they will not be used any new exploits.

Nevertheless, MuscleNerd states that comex is developing a more effective method. But for now this is a backup plan

More details to come. And last but not least, all ios DEVICE will be supported in this said jailbreak. 

Sn0wbreeze 1.8 has been released. This is by the same developer who is behind other popular iPhone jailbreak tools such as sn0wbreeze 1.6 and 1.7 for iOS 4, sn0wbreeze for iPhone 3.1.3, f0recast and BlackBreeze. Just like the PwnageTool for Mac, Sn0wbreeze 1.8 can jailbreak iPhone 3GS (old bootrom, and already pwned on iOS 4.x), iPod touch 2G (non MC model) and iPod touch 3G on iOS 4.1 Beta. iPhone 3G users will have to jailbreak using Redsn0w, guide for which is posted here.



So if you have a Windows machine, you can use Sn0wbreeze 1.8 to create custom firmware files without the upgraded baseband. Again, only the following devices are supported.

* iPhone 3GS (old bootrom and already jailbroken on iOS 4.x)
* iPod touch 2G (non MC model)
* iPod touch 3G

Warning: If you rely on an unlock, DO NOT update to iOS 4.1.

Instructions are as follows.

Step 1: Download and install the latest version of iTunes.

Step 2: Now start iTunes and sync your iPhone with your PC so that it backs-up all your important data including settings, apps, music, contacts and photos.

Step 3: Download Sn0wbreeze and the original iOS 4.1 firmware file for your version of iPhone or iPod touch. Move all these files to your desktop.

Step 4: Start Sn0wbreeze and select “Simple Mode”.



Step 5: Sn0wbreeze will now ask you to browse for your .ipsw file. Select the correct iOS 4.1 firmware .ipsw file by clicking the “Browse” button. Sn0wbreeze will verify the selected file and then will present you with following screen.



Step 6: Click on "Yes" when Sn0wbreeze asks you “Do you want to activate your iPhone?” for hacktivation. Click on “No” only if you are on an officially supported carrier like AT&T.



Step 7: Sn0wbreeze will now create the custom .ipsw file for your iPhone which will be jailbroken.






Step 8: Now you will have to restore your iPhone to this custom firmware 4.1 that you just cooked using Sn0wbreeze for your iPhone. Click on your phone from the sidebar in iTunes and then press and hold left “Shift” button on the keyboard and then click on “Restore” (Not “Update” or “Check for Update”) button in the iTunes and then release the “Shift” button.

This will make iTunes prompt you to select the location for your custom firmware 4.1. Select that custom .ipsw file and click on “Open”.

Step 9: Now sit back and enjoy as iTunes does the rest for you. This will involve a series of automated steps. Be patient at this stage and don’t do anything silly. Just wait while iTunes installs the new iOS 4.1 on your iPhone. Your iPhone screen at this point will be showing a progress bar indicating installation progress. After the installation is done, iPhone will restart automatically and you should now have a fully jailbroken iPhone running on iOS 4.1.

Step 10: Once you are done with the jailbreak process. You can now restore all your settings, apps, music, contacts and photos to the newly installed iOS 4.1 by restoring the backup that you made in Step 2 from iTunes.

Feel free to ask me any question here should you run into any problem during the jailbreak process.

Download iTunes 9.2 for Windows and Mac OS X
Download iOS 4.1 for iPhone 3GS, iPhone 3G and iPod touch
Download .NET Framework 3.5 (required to run Sn0wbreeze)
Download Sn0wbreeze 1.8 (Windows Only) [Fast Mirror link]

Jailbreak iOS 4.1 with Sn0wbreeze [Custom Firmware Windows] | Redmond Pie

Sn0wbreeze 1.8 has been released. This is by the same developer who is behind other popular iPhone jailbreak tools such as sn0wbreeze 1.6 and 1.7 for iOS 4, sn0wbreeze for
iPhone 3.1.3, f0recast and BlackBreeze. Just like the PwnageTool for Mac, Sn0wbreeze 1.8 can jailbreak iPhone 3GS (old bootrom, and already pwned on iOS 4.x), iPod touch 2G (non MC model) and iPod touch 3G on iOS 4.1 Beta. iPhone 3G users will have to jailbreak using Redsn0w, guide for which is posted here.

Jailbreak iPhone 4.1 iOS on iPhone and iPod touch 2G [How to Guide] | Redmond Pie



So if you have a Windows machine, you can use Sn0wbreeze 1.8 to create custom firmware files without the upgraded baseband. Again, only the following devices are supported.

iPhone 3GS (old bootrom and already jailbroken on ISO 4X

Download iOS 4.0 for iPhone 4, 3GS, 3G and iPod touch [Final Version] | Redmond Pie


IPOD TOUCH 2G (NON MC MODEL)

Jailbreak iOS 4 iPod touch 2G [How to Guide] | Redmond Pie


Warning: If you rely on an unlock, DO NOT update to iOS 4.1.

Instructions are as follows.

Step 1: Download and install the latest version of iTunes.

Step 2: Now start iTunes and sync your iPhone with your PC so that it backs-up all your important data including settings, apps, music, contacts and photos.

Step 3: Download Sn0wbreeze and the original iOS 4.1 firmware file for your version of iPhone or iPod touch. Move all these files to your desktop.

Step 4: Start Sn0wbreeze and select “Simple Mode”.



Step 5: Sn0wbreeze will now ask you to browse for your .ipsw file. Select the correct iOS 4.1 firmware .ipsw file by clicking the “Browse” button. Sn0wbreeze will verify the selected file and then will present you with following screen.



Step 6: Click on "Yes" when Sn0wbreeze asks you “Do you want to activate your iPhone?” for hacktivation. Click on “No” only if you are on an officially supported carrier like AT&T.



Step 7: Sn0wbreeze will now create the custom .ipsw file for your iPhone which will be jailbroken.




Step 8: Now you will have to restore your iPhone to this custom firmware 4.1 that you just cooked using Sn0wbreeze for your iPhone. Click on your phone from the sidebar in iTunes and then press and hold left “Shift” button on the keyboard and then click on “Restore” (Not “Update” or “Check for Update”) button in the iTunes and then release the “Shift” button.

This will make iTunes prompt you to select the location for your custom firmware 4.1. Select that custom .ipsw file and click on “Open”.

Step 9: Now sit back and enjoy as iTunes does the rest for you. This will involve a series of automated steps. Be patient at this stage and don’t do anything silly. Just wait while iTunes installs the new iOS 4.1 on your iPhone. Your iPhone screen at this point will be showing a progress bar indicating installation progress. After the installation is done, iPhone will restart automatically and you should now have a fully jailbroken iPhone running on iOS 4.1.

Step 10: Once you are done with the jailbreak process. You can now restore all your settings, apps, music, contacts and photos to the newly installed iOS 4.1 by restoring the backup that you made in Step 2 from iTunes.

Sn0wbreeze 1.7 for 4.0 (for Windows) has been released. This release supports iPhone 3GS (old and new bootrom), iPhone 3GS, iPod touch 2G (MC and non-MC models), and iPod touch 3G. Though iPhone 3GS (new bootrom), iPod touch 2G (MC models) and iPod touch 3G will have to be either on 3.1.2 firmware, or will need to have their SHSH blobs saved for iOS 3.1.2 in order to successfully jailbreak these devices on iOS 4. Also the jailbreak for iPhone 3GS (new bootrom), iPod touch 2G (MC models) and iPod touch 3G on iOS 4 will be tethered, which means whenever you turn off your phone, you will need to re-connect it to a computer to be able to turn it back on.


READ FULL REPORT HOW TO HERE


Jailbreak iPhone 3GS iOS 4.0 New Bootrom with Sn0wbreeze | Redmond Pie

MuscleNerd, one of the iPhone Dev Team has just answered a guy who was asking him about a Jailbreak @xfsasx for iPhone 4, he already answered him telling him that they already handled Jailbreak for iOS 4 on all Devices (Including iPhone 4) by the simple comex's tool "Spirit"

Here's the guy asking MuscleNerd about the Jailbreak:

@MuscleNerd what about a jailbreak!!! Unlocks should come after!!! :-p I need one bad! LOL

And Here's our Genius, MuscleNerd answering him:

@xfsasx jailbreak for all devices at 4.0 is already handled by upcoming @comex release :) so, good time for iphone4 unlock stuff

If you notice above, he told him by "upcoming @comex release", that means that it will his popular tool "Spirit", The amazing thing that Spirit is Untethered Jailbreak with only one Click to jailbreak, the same as Blackra1n by Geo.