Jailbreak iPhone, iPod Touch, iPad

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 4, 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: Step-by-step tutorial

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….”

DevTeam worked hard for the last several hours and released jailbreak tool for iOS 4.2.1. It is redsn0w 0.9.6 b4.

As usual we remind all ultrasn0w unlockers please stay away from this official firmware. Wait for the ability to create custom 4.2.1 IPSWs that don’t update your baseband!

New redsn0w 0.9.6 b4 uses limera1n exploit and will successfully jailbreak all devices. The only problem is that it is a tethered jailbreak, which means you will have to plug it to a computer and rerun redsn0w on every reboot. This so called tethered or semi-tethered jailbreak. This condition applies to iPhone 3GS (new bootrom), iPhone 4, iPad, iPod touch 2G (MC model), iPod touch 3G and iPod touch 4G. Hackers are working hard to create untethered jailbreak for these devices. To use future untethered jailbreak you need to save SHSH keys for iOS 4.1 using TinyUmbrella utility or directly in Cydia.

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.

You can download RedSn0w 0.9.6 b4 here.

Next iPhone/iPod/iPad firmare iOS 4.2 is due out soon. What can we expect in terms of jailbreaking 4.2?

Limera1n exploit for 4.2 in most cases is a tethered jailbreak. That means if you have to reboot your device, it will show a “connect to itunes” logo until you run the jailbreak software again.

• iPhone 3G – will run 4.2 untethered. Redsn0w will be updated.
• iPhone 3GS – old bootrom will run 4.2 untethered if done via Pwnagetool while updating from 4.1. Otherwise it will be tethered.
• iPhone 4 – tethered
• iPod 2G – untethered.
• iPod Touch 3G, iPod Touch 4G – tethered
• iPad – tethered.

Tethered jailbreak isn’t that bad for iPads and iPods. But if something happens and your iphone reboots while you’re away from your computer, you cant use the device until you get home and run some tool on your computer again.

We suggest not updating until new expoit will be implemented in new utility.

The community is working on a solution to this to either make the jailbreak untethered or at least semi-tethered. Semi-tethered means the device will at least reboot, but unjailbroken while on the road until you return to your computer.

The iPhone Dev-Team recently has released a new version of RedSn0w for Mac and Windows.  RedSn0w uses the Limera1n exploit to support more devices and adds the ability to restore custom firmware ipsws. The crew promises that now RedSn0w will work with the iPhone 3G, 3GS, 4, iPad, iPod 2G, 3G, and 4G (Not iPod 2G-MC yet).

You can download RedSn0w 0.9.6b2 from here.

MuscleNerd, a hacker from DevTeam, recently published a screenshot of anticipated jailbreak utility PwnageTool 4.1. It will support iOS 4.1 and will be able to preserve old baseband for unlockers, who have not updated to iOS 4.1.

From the screenshot we can tell that PwnageTool 4.1 will support:

• iPhone 4
• iPhone 3GS
• iPhone 3G
• iPod Touch 2G
• iPod Touch 3G
• iPod Touch 4G
• iPad
• AppleTV 2G

Here’s his message from twitter:

PwnageTool screen about to get a lot more crowded again due to limera1n exploit http://is.gd/g7P9G (unlockers win most)

New PwnageTool was expected to be released last weekend, however it was delayed.

Greenpois0n for Windows and Linux was released a few days ago. Today Chronic Dev Team created a Mac OS version.

Greenpois0n does jailbreak of firmware iOS 4.1 on the following devices:

- iPhone 4
- iPhone 3G S
- iPod touch 4G
- iPod touch 3G
- iPad (iOS 3.2.2)

Greenpois0n uses that same exploit as limera1n.

You can download GreenPois0n from here.

These are instructions on how to jailbreak your iPad with latest iOS 3.2.2 using Limera1n for Mac. You can find the Windows version of this tutorial here.

Step 1
Open your browaer and navigate to www.limera1n.com and download LimeRa1n for Mac by clicking on the Mac logo.

When prompted save the download to your desktop.

Step 2
Double click the limera1n.zip file from the desktop to extract the application, then double click it to launch.

Step 3
Connect your iPad to the computer and click the large make it ra1n button

Step 4
You iPad will now be placed in recovery mode.

Follow instructions:

Press both the power and the home buttons.

When Limera1n asks you to, release the power button.

Your phone will now be in DFU mode

As limera1n performs its exploit you will see the image of a lime raindrop on your iPad.

Limera1n will let you know when it is complete.

Step 5
After you power back on your iPad you will see a new icon on the SpringBoard entitled limera1n. Press it to continue.

Step 6
Once Limera1n opens select Cydia then press the Install button at the top right of the screen.

Step 7
Once the Cydia installation has completed you must reboot your iPad.

Step 8
When your iPad has restarted you can run Cydia. Let it do all the necessary updates

NOTE*: To remove the limera1n icon from your desktop you can install CyDelete from Cydia then use it to delete the application as you delete regular AppStore apps.

Update: To have access to the root file system of your iPad (via file managers like iFunBox) install application called afc2add in Cydia.

These are instructions on how to jailbreak your iPhone 3GS (all bootroms) or iPhone 4 using Limera1n for Mac OS X. Limera1n supports iOS 4.0, iOS 4.0.1, iOS 4.0.2 and iOS 4.1. Use the same steps to jailbreak iPod Touch 4G and iPod Touch 3G and even iPad. You can find the Windows version of this tutorial here.

Remember: Do not update to iOS 4.1 if you need the unlock. Ultrasn0w does not support that baseband yet.

Step 1
Open your browaer and navigate to www.limera1n.com and download LimeRa1n for Mac by clicking on the Mac logo.

When prompted save the download to your desktop.

Step 2
Double click the limera1n.zip file from the desktop to extract the application, then double click it to launch.

Step 3
Connect your iPhone to the computer and click the large make it ra1n button

Step 4
You iPhone will now be placed in recovery mode.

Follow instructions:

Press both the power and the home buttons.

When Limera1n asks you to, release the power button.

Your phone will now be in DFU mode

As limera1n performs its exploit you will see the image of a lime raindrop on your iPhone.

Limera1n will let you know when it is complete.

Step 5
After you power back on your iPhone you will see a new icon on the SpringBoard entitled limera1n. Press it to continue.

Step 6
Once Limera1n opens select Cydia then press the Install button at the top right of the screen.

Step 7
Once the Cydia installation has completed you must reboot your iPhone.

Step 8
When your iPhone has restarted you can run Cydia. Let it do all the necessary updates

NOTE*: To remove the limera1n icon from your desktop you can install CyDelete from Cydia then use it to delete the application as you delete regular AppStore apps.

UPdate: To have access to the root file system of your iPhone (via file managers like iFunBox) install application called afc2add in Cydia.

If you need unlock – install ultrasn0w via Cydia. Works for up to iOS 4.0.2.

Today the Chronic Dev-Team released their jailbreak utility called Greenpois0n. There are currently two versions – for Windows and for Linux users. The team is working on a Mac version, so it will be released soon. Greenpois0n supports only firmware iOS 4.1, so use Limera1n if you want to jailbreak iOS 4.0, iOS 4.0.1 or iOS 4.0.2.

Remember: Do not update to iOS 4.1 if you need the unlock. Ultrasn0w does not support that baseband yet.

Hackers used the bootrom exploit found by Geohot and used in limera1n.

This release of greenpois0n supports:
- iPhone 4
- iPhone 3G S
- iPod touch (4th Generation)
- iPod touch (3rd Generation)
- iPad

Soon there will be another release, adding things like support for:
- Apple TV (2nd Generation)
- iPod touch (2nd Generation)

You can download GreenPois0n from here.