Sn0wbreeze 2.9.4 Released With Support For iOS 5.1.1 Untether On A4 Devices Only

Famed iPhone developer ih8sn0w has just released Sn0wbreeze 2.9.4 for Windows which brings support for iOS 5.1.1 untether on A4 powered devices such as the iPhone 4, iPad 1, iPod touch 4G, Apple TV 2G

Downgrade iOS 5.1 To 5.0.1, 5.0, 4.3.3, 4.3.5 On iPhone, iPad, iPod touch [How-To Tutorial]

Whether you have been experiencing battery woes, or you are just pining for an untethered jailbreak, there are a variety of reason as to why you may wish to downgrade your device from iOS 5.1 back to iOS 5.0.1 or 4.x.

So long as you’ve saved the SHSH blobs of the firmware you wish to downgrade to (Cydia’s homepage will notify you – as shown below), then you can quickly remove yourself from what is fast becoming a fiasco of an iOS 5 release.

Important Note: Before you begin, keep in mind that the iPhone 4S cannot be downgraded to an earlier version of iOS, unless Apple is signing that particular firmware version to which you’re downgrading to. Only the iPhone 4, 3GS, iPad 1 and the iPod touch users can downgrade back to both iOS 5.0.1 (custom firmware only) and iOS 4.x as long as they have SHSH blobs and APTicket saved for the firmware they are downgrading to. iPad 2 users can only downgrade back to iOS 4.x as long as they have saved SHSH blobs for it. You cannot save SHSH blobs once Apple has stopped signing the firmware you want to downgrade to.

All set? Let’s begin:

For downgrading to iOS 5.0.1/5.0 custom firmware using iFaith

As mentioned above, if you have both APTicket+SHSH blobs saved for iOS 5.0.1 or 5.0, you can downgrade your device to a custom iOS firmware. This however wont work on iPhone 4S and iPad 2. Only iPhone 4, 3GS, iPad 1, and iPod touch users can downgrade to iOS 5.x custom firmware using this method.

Step 1: Simply download the latest version of iFaith for Windows from here, official stock iOS 5.0.1 firmware from here.

Step 2: Build a signed firmware file by clicking on ‘Build *signed* IPSW w/Blobs’.

Step 3: Browse for the SHSH blobs file that you previously saved for your current device to downgrade back to the old 5.0.1/5.0 firmware. Next, iFaith will ask you to select the stock firmware of which you want it to create custom firmware file from. Once done, iFaith will have a new custom firmware file for you waiting on the desktop with SHSH blobs incorporated for the firmware you are downgrading to.

Step 4: Next, enter DFU mode using iFaith and then simply use iTunes to restore to this custom firmware file.

That’s it! you are done.

For downgrading to iOS 4.3.5 and below

The following instructions applies to iPad 2, iPhone 4, 3GS, iPad 1, and iPod touches with SHSH blobs saved on Cydia or by using TinyUmbrella for the iOS 4.x firmware you are downgrading to. iPhone 4S again is not supported.

Step 1: Download the iPSW of the firmware version you would like to revert to, as listed below:

• iOS 4.3.5
• iOS 4.3.4
• iOS 4.3.3

Step 2: Connect your device to your PC or Mac, and slip it into pwned DFU mode using the latest version of Redsn0w (look for Pwned DFU option in “Extras”).

Step 3: Next, you’ll need to edit your hosts file. It can be found in Windows > System 32 > drivers > etc on Windows or just etc on OS X. Back it up somewhere safe, and then open it with a text editor such as Notepad or TextEdit.

Step 4: Add the following the following string to the bottom of the file, refer to the screenshot for further assistance:

74.208.105.171 gs.apple.com

Step 5: Open iTunes and select your device on the left pane. Hold down Shift (Win) or Alt (OS X), click Restore and locate your elected iOS 4.x iPSW from the first step.

Step 6: Ignore Error 10xx if it pops up – it’s to be expected. Use TinyUmbrella or Fix Recovery to kick it out of recovery mode.

You’re done! You should have a fresh install of your chosen iOS 4.x firmware version. If you downgraded for purposed of jailbreak, then those of you with an iPhone 4, 3GS, iPad 1, and iPod touches can use Redsn0w or Sn0wbreeze to untether jailbreak on iOS 5.0.1.

To conclude, please be sure to place your backup hosts file in its folder in order to receive updates from Apple servers in future.

Pod2g Gives Us Another Status Update On iOS 5.1 Untethered Jailbreak

A tweet today by a prominent iOS security researcher has led to speculation that a new jailbreak for iOS 5.1 is on the horizon, though there has yet to be any news as to when the release may take place.

The jailbreak scene never sits still, and with master of the art Pod2g now back in the frame, things are moving along nicely with regards to the iOS 5.1 jailbreak.

Pod2g recently rejoined the jailbreaking fold, working with the Chronic and iPhone Dev Teams to release iOS 5.0.1 untether tool for the A5 class of iOS devices, with A4 devices also getting in on the fun. Having joined forces in January, the pace has once again picked up, with Pod2gannouncing via his Twitter page that the iOS 5.1 jailbreak is coming along nicely.

News: we have all exploits required to do a new jailbreak. I’m working on bypassing ASLR at bootup.

While the news that a jailbreak for iOS 5.1 is in the works is not really news to anyone, the fact that the team has now apparently in possession of all the required exploits is an important step towards having a fully working, publicly available jailbreak. With internal testing under way, and the man himself now working on bypassing the ASLR at bootup, then we may not to be too far away.

The ASLR (address space layout randomization) is particularly important. Added back first in iOS 4.3 by Apple, the new boot checks were made part of iOS in order to add extra security for the operating system, and thus hamper jailbreak attempts. Hacker Charlie Miller subsequently broke ASLR at Pwn2Own, showing once again that anything Apple does to secure its mobile operating systems will eventually end up with the same result – a jailbreak eventually being released.

At this point it is important to stress that there is currently no estimated time of arrival for an iOS 5.1 untether. While Pod2g’s announcement is indeed encouraging for the many that are waiting for the release, it does not constitute news that we should expect a release imminently. With Apple always working on adding more security to the iPhone, iPad and iPod touch, it is also possible that a new release of iOS will block attempts to jailbreak once again.

We suspect that will just push the people behind the jailbreak scene to simply redouble their efforts, though. Isn’t that the best part of jailbreaking?

So while the owners of new A5 and A5X devices such as iPhone 4S, iPad 2, and the new iPad will have to wait for the new tool to be made available, those of you who have A4 devices and below (iPhone 4, iPhone 3GS etc) can use Redsn0w (instructions here) or Sn0wbreeze (instructions here) for tethered jailbreak on 5.1.

 

Source: RedmondPie(DOT)com