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 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 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.
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 , iPhone 3GS, iPod Touch 2G, iPod Touch 3G, iPod Touch 4G, iPad and Apple TV 2G. Unlike redsn0w 0.9.6 this is untethered, so there is no need to connect iOS device to a computer after restart.
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.
UPDATE:
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.
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.
The iPhone Dev team has just released the second beta of their untethered RedSn0w jailbreak (the first beta has been released few hours ago and has more bugs).
New jailbreak is called “Jailbreak Monte”, as it uses new “backup method”. The iPhone Dev Team warns that their beta-version is not a general release and you should back up all your media before using it. There are also other limitations and bugs:
To use this version of jailbreak Cydia should have your 4.2b3 SHSH blobs saved on file and following:
“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!”
Now, if you’re ready to apply this version of jailbreak, upi can download redsn0w 0.9.7 beta here.
After downloading and applying just select “Jailbreak Monte” to try out the untether.
The iPhone Dev team asks to test it after a fresh restore in order to keep track of the variables involved. Be careful!
By the way, iPodUplink has posted a video where you can see how to jailbreak your device with the latest version of redsn0w:
MuscleNerd from iPhone DevTeam tweeted that an untethered jailbreak solution for iOS 4.2.1 will be released soon, probably next week.
scotty6kids78: @MuscleNerd are we any closer to the unteathered #jailbreak for the new #ios4.2 on #iphone4 ?
MuscleNerd: @scotty6kids78 it’ll be here by Xmas (not because we’re sitting waiting for Xmas, but because it’s achievable deadline)
This untethered solution will be applicable to all current iOS 4.2.1 devices, including , iPhone 3GS, iPad, Apple TV 2G and iPod touch 4G. We will keep you updated.
This week Google has released a new version of its client app for Android Market, which will work on any smartphone running Android OS 1.6 or higher.
The company aims to facilitate the process of discovering new software and its purchase. That’s why new Android Market will have a Cover Flow-like style of app listings and include new categories like Widgets and Live Wallpapers, as currently the catalog is filled pretty much with these kinds of software. Besides that, app pages will now have more info and links to related content.
Some changes were made to the policy of software returns. If earlier user could take his money back in case he didn’t like the app he bought within 24 hours, now this time is shortened to 15 minutes.
As the number of Android devices continues to grow and it becomes hard for developers to make their apps hardware compatible with as many existing handsets as possible, Google presents its new solution:
“To make it easier for developers to distribute and manage their products, we will introduce support for device targeting based on screen sizes and densities, as well as on GL texture compression formats.”
Another important feature of new Android Market is a new limitation of app file size, which is now extended to 50 MB (earlier it was 25 MB). This is still 40 times smaller than the current limitation for iOS apps (2GB). This can be explained by the fact that iOS apps can be downloaded not only via its mobile client (like apps for Android), but also via iTunes, that can be connected to the Internet in any possible way and thus capable to download such amounts of information. Nevertheless, some developers pass this limitation by offering tiny apps for Android that can download necessary files (like music, textures, video) of any size after its purchase.
However, Google’s attempts to create a rival to an App Store still are not successful as they can be. AppleInsider has studied the subject and revealed that the Android’s openness has led to a number of cases when popular titles like Radiant were cracked to be used as illegal copies by “97% of players in Asia, 70% in Europe and 43% in North America”. That’s why most of developers like Rovio (which created Angry Birds) offer free versions of their apps to earn money from showing the ads. But that kind of income is not as profitable as offering paid apps, which makes iOS more attractive for developers than Android.
It was also noted that Android Market offers poor security for users, though this situation can be changed by cleaning up the store. At least, that was what the developer of DoubleTwist Jon Lech Johansen advised Google more than a half a year ago, but the company has not still made any steps in that direction.
Apple has reportedly disabled its jailbreak detection API through iOS 4.2 software update. The API helped third-party mobile device management (MDM) applications to check for unauthorized modifications of system files. Apple’s jailbreak detection API provided MDM applications direct access to iOS system information and was able to ask the operating system directly if it had been jailbroken. Jailbreak exploits typically change a number of operating system files, and exploit one or another low-level OS features to let users directly load their own or third-party applications.
“We used it when it was available, but as an adjunct,” says Joe Owen, vice president of engineering at Sybase, which offers the Afaria device management software. “I’m not sure what motivated their removing that….”