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 confirmed that a Windows version of Redsn0w 0.9.7 is on its way for jailbreaking iOS 4.2.1 with iOS 4.1 IPSW instead of iOS 4.2b3 firmware and SHSH blobs.

Since Apple still serves the 4.1 IPSW (not blobs!), we’ll do a Windows redsn0w release for untethered 4.2.1 via Monte-4.1

Unfortunately though, it wont be as fast as its Mac OS X counterpart. This is because the Windows version of Redsn0w 0.9.7 will be using filesystem instead of RAM, which will make the process a whole a lot slower.

Please don’t complain too loudly about how slow it takes The Win version uses filesystem instead of RAM: slow!

As always, we will keep you updated. Stay tuned for more!
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Instead of releasing a tethered version (like Redsn0w 0.9.6) of GreenPois0n for iOS 4.2.1 jailbreak, members of Chronic Dev have decided to work on their own untethered solution for iOS 4.2.1 jailbreak, confirms Joshua Hill, one of the members of the team.





p0sixninja: A lot of people are saying another tethered jailbreak is pointless, I agree. Focusing on getting untethered before release

When asked if it is the same exploit as the one Comex has been working on, and whether or not it will require SHSH blobs for 4.2b3 like Redsn0w 0.9.7. Joshua said that they are working on their own untethered exploit, and that it will not require SHHS blobs for 4.2b3.

tahu363: @p0sixninja I assume you are talking about Greenpois0n? Are you implementing Musclenerd’s untether or do you have your own?

p0sixninja: @tahu363 we’re implementing our own

Capsfanchad: @p0sixninja I’m assuming "your own" will require 4.2b3 shsh? And thanks for your guys work!

p0sixninja: @Capsfanchad lol no

As usual, no ETA’s on release yet. It will be released when ready. Stay tuned as we will inform you as soon as it is available for download