The Chronic Dev-Team has released Greenpois0n for Windows which brings an untethered jailbreak to iOS 4.2.1 devices. You can jailbreak
You can download the latest version of GreenPois0n from here.
Update: Step-By-Step tutorial
The Chronic Dev-Team has released Greenpois0n for Windows which brings an untethered jailbreak to iOS 4.2.1 devices. You can jailbreak
You can download the latest version of GreenPois0n from here.
Update: Step-By-Step tutorial
The Chronic Dev-Team has recently announced via twitter that they will release their Greenpois0n untethered jailbreak for Windows this weekend.
Site issues should be better soon thanks to @iOPK. Windows version should be out tomorrow or the next day
Greenpois0n for Mac OS X with support of iOS 4.2.1 untethered jailbreak was released yesterday.
These are step-by-step instructions on how to jailbreak iOS 4.2.1 on iPhone 3GS,
Greenpois0n has been updated to support the iOS 4.1 and iOS 4.2.1 firmware. Use Limera1n if you want to jailbreak iOS 4.0, iOS 4.0.1, iOS 4.0.2.
Remember: Greenpois0n recommends a clean restore before continuing.
Unlockers: do not update to iOS 4.1 or iOS 4.2.1 if you need the unlock. Ultrasn0w does not support that baseband yet. The only exception is the iPhone 4. You can unlock iPhone 4 with iOS 4.1 using ultrasn0w. Experienced users can also try update to iOS 4.2.1 without upgrading your baseband by using TinyUmbrella. Start TSS Server->Start iTunes->Plug in your iPhone->Restore 4.2.1->Error 1013->Put phone into DFU Mode->Launch Greenpois0n.
We are not authors of this app. We do not promise that everything will go well, use this tutorial at your own risk.
These are step-by-step instructions on how to jailbreak iOS 4.2.1 on iPhone 3GS,
Greenpois0n has been updated to support the iOS 4.1 and iOS 4.2.1 firmware. Use Limera1n if you want to jailbreak iOS 4.0, iOS 4.0.1, iOS 4.0.2.
Remember: Greenpois0n recommends a clean restore before continuing.
Unlockers: do not update to iOS 4.1 or iOS 4.2.1 if you need the unlock. Ultrasn0w does not support that baseband yet. The only exception is the iPhone 4. Experienced users can also try update to iOS 4.2.1 without upgrading your baseband by using TinyUmbrella. Start TSS Server->Start iTunes->Plug in your iPhone->Restore 4.2.1->Error 1013->Put phone into DFU Mode->Launch Greenpois0n.
We are not authors of this app. We do not promise that everything will go well, use this tutorial at your own risk.
Step One
Open your web browser and download the latest Mac version of GreenPois0n from here.
Step Two
When prompted save the download to your desktop.
Step Three
Double click the downloaded greenpois0n-osx_rc5.zip file to extract the archive. Then double click greenpois0n icon from the desktop to launch the application.
Step Four
Connect your iPhone to the computer, power it off. Then click the large Jailbreak button in greenpois0n app.
Step Five
You will now be instructed on how to place your iPhone into DFU mode. You will be asked to press and hold the sleep button (power button) for 3 seconds.
Now continue holding sleep button and and press home for 10 seconds.
Release sleep button and continue holding the home button. Do not release the Home button at this point!.
Step Six
Once your iPhone is successfully in DFU mode the jailbreak will begin. You need to continue holding the home button.
Step Seven
Now once Greenpois0n informs you that it has completed the jailbreak you can release the Home button.
Click the Complete button to close the application.
You’ll notice some text scrolling on your device.
Step Eight
After the iPhone restarts you’ll see a new Loader application on your Springboard. Press to launch it.
Step Nine
Select Cydia then press the large Install Cydia button that appears. Now Cydia will be downloaded from internet, so you need internet connection through wi-fi or edge/3g.
Step Ten
Once Cydia has installed successfully you can remove Loader by pressing the Options button then the large red Remove Loader.app button.
Step Eleven
Restart your iPhone and run Cydia. Let it do all the necessary updates.
You’re done!
Update:To change the boot logo back to Apple: install “Apple Boot Logo” from Cydia, then go to Settings-BootLogo and select Apple Logo.
The Chronic Dev-Team has finally released the new version of Greenpois0n, which features a full untethered jailbreak for iOS 4.2.1. No SHSH blobs needed. The exploit used has already been patched in iOS 4.3, so it not work on future iOS 4.3.
You can jailbreak
There is only Mac OS X version available. Chronic Dev-Team will release Windows and probably Linux version soon.
Unlockers: do not update to stock iOS 4.2.1. You should keep your baseband version. Wait for new version of PwnageTool.
You can download GreenPois0n RC5 from here.
Good news everyone. DevTeam recently posted a tweet where they inform us that they will soon release a new version of Redsn0w utility for Windows. It will be an untethered jailbreak for iOS 4.2.1 using the Monte iOS 4.1 technique.
In fact, Apple still provides 4.1 ipsw and this could be used to jailbreak.
In addition, the team warns that Windows version will be very slow because the program uses the filesystem instead of RAM.
Jay Freeman (better known as Saurik) has reported that he added a new feature to Cydia, the jailbreak application store. “Cydia Theme Center” provides easer search of for Retina and non-Retina themes. Right now, you will find a selection of free and paid themes popular in Cydia, as well as themes selected by the employees of MacCiti and ModMyi. Soon Cydia user also will be able to vote their favorites into Theme Center. Freeman has predicted that the feature would be really popular. After release of Theme Center he posted to Twitter: The second feature to use my Whole Package Index, the “Cydia Theme Center”, went up an hour ago, and 15,000 people have already tried it! ;P
The Chronic Dev-Team has announced via twitter an untethered jailbreak for iOS 4.2.1. This should work for iPhone 3GS (new bootrom),
The untether is demoed in the video below. It’s a result of a collaboration between @0naj, @p0sixninja, and @pod2g. P0sixninja has previously said it will not require iOS 4.2b3 SHSH blobs.
A small bug with wifi still remains. They will release utility as soon as they fix it.
Here is a video proof:
Last week we reported that the well-known hacker Geohot might call his next jailbreak tool rubyra1n. Now guts from Dev Team hit that they know something about Geohot’s effort to bring a proper untethered jailbreak to iOS 4.2.1.
A recent tweet from MuscleNerd confirms the rumors: “I hear geohot does have an untether actually! Though not for all devices”.
May be soon we will jailbreak our devices with a new tool from George Hotz (better known as Geohot) called Rubyra1n. On March 27, 2010 George Hotz registered two domains limera1n.com and blackra1n.com, another jailbreak tool Hotz released last year. The new rubyra1n, however, doesn’t share the same data with limera1n.com — an app released in October to jailbreak iOS 4.1. Geohot doesn’t comment these rumors anyhow, but we, obviously, wouldn’t be surprised at all to see him coming out with his own iOS 4.2.1 jailbreak for all devices.