DevTeam released PwnageTool 4.2 utility. It is able to create a custom IPSW that can perform an untethered jailbreak on iOS 4.2.1. As usual it can preserve baseband version for unlockers. Devteam used the same method that was implemented in greenpois0n.
PwnageTool supports all 4.2.1 devices other than iPod touch 2G:
Jailbreak is even improved compared to GreenPois0n RC6:
Developer Steve Troughton-Smith has tweeted that customers of Three in Ireland and the UK and China Unicom in China woke up today and found that that Cydia on their devices was blocked by the carrier. So, now the jailbroken devices don’t have access to certain content from Cydia when on the Three and China Unicom networks. Though, only main page is unavailable. Moreover, Cydia is blocked over 3G networks that means that the popular store still available via Wi-Fi.
Famous iPhone hacker Geohot can rap! Sony sued him, because he created a jailbreak for Sony Playstation. We don’t know if this video is made by Geohot, but it’s worth seeing. Take a look:
Here are the lyrics:
Untethered iOS 4.2 jailbreak GreenPois0n has just been upgraded to version RC6. New version includes support for the Apple TV 2G. GreenPosi0n will give your Apple TV an untethered jailbreak and will also install the popular NitoTV software on it. RC6 also fixes emulator issues. So if you had problems with RC5 go ahead and try this one. You can also apply RC6 over RC5 without restoring.
You can download the latest GreenPois0n version .
These are step-by-step instructions on how to jailbreak iOS 4.2.1 on iPhone 3GS, , iPad, iPod Touch 2G, iPod Touch 3G, iPod Touch 4G using Greenpois0n for Windows. Tutorial for Mac OS X users is available . All the steps are the same for all devices, we will cover iPhone.
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 Windows version of GreenPois0n from .
The Chronic Dev-Team has released Greenpois0n for Windows which brings an untethered jailbreak to iOS 4.2.1 devices. You can jailbreak , iPhone 3GS, iPod Touch 2G, iPod Touch 3G, iPod Touch 4G, iPad.
You can download the latest version of GreenPois0n from .
Update:
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 .
These are step-by-step instructions on how to jailbreak iOS 4.2.1 on iPhone 3GS, , iPad, iPod Touch 2G, iPod Touch 3G, iPod Touch 4G using Greenpois0n for Mac OS X. Tutorial for Windows users is available . All the steps are the same for all devices, we will cover iPhone.
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 .
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), and iPad. And it will not require saved iOS 4.2b3 SHSH keys.
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: