Today, just a day after the public release of the new firmware for the iOS devices, iPhone Dev Team has released an updated Redsn0w version, which allows users to jailbreak iOS 5.1 on the iPhone, iPad and iPod touch.

Jailbreak iOS 5.1

The exploit is only compatible with the A4 devices, jailbreak for iPhone 4S and iPad 2 based on the iOS 5.1 is in development.

New Redsn0w 0.9.10b6 version is fully compatible with the latest Apple-iOS version and implements attached iOS 5.1 Jailbreak for iPhone 4, 3GS, iPad, and an iPod touch 3G and 4G.

Hackers from Team Dev Team strongly recommend staying away from installing iOS 5.1 anyone who expects to be unbound jailbreak anytime soon. Right now, users have a choice: the original version to correct errors and add support for the Japanese Siri, thanks to the new firmware, or wait for the unattached jailbreak iOS 5.1. The new tool, which is preparing to release, will allow cracking the A5 chip (iPhone 4S and iPad 2).

Redsn0w 0.9.10b6 Release Notes:

  • Redsn0w 0.9.10b6 doesn’t jailbreak iOS 5.1 on the iPhone 4S and iPad 2.
  • The iPhone 4S and iPad 2 owners must to Stay on iOS 5.0.1.
  • If you are using GEVEY or Ultrasn0w, Scroll down for more info about Unlock iOS 5.1.
  • IOS 5.1 jailbreak is bound, your iOS-device must be connected to your computer every time when you reboot.

How to Jailbreak iOS 5.1 With Redsn0w 0.9.10b6

Step 1: Download and install iTunes 10.6 for Windows or Mac.

Step 2: Connect your iOS device to your computer and update it to iOS 5.1, using iTunes or a wireless upgrade function directly on the devices. It’s enough to go to the General menu-> Update -> Download and install it. To download the iOS 5.1 IPSW files, click here.

Step 3: Download Redsn0w 0.9.10b6 for Windows or Redsn0w 0.9.10b6b for Mac and run the program.

jailbreak iPhone 4 5.1

Step 4: Click on “Jailbreak” then on “Install Cydia”.

Step 5: Make sure that your device is turned off and connected to the computer then click Next.

Jailbreak iOS 5.1 using Redsn0w

Now, Redsn0w is ready to jailbreak iOS 5.1, but before that, you need to put the device in DFU mode. Hold down the lock button for 3 seconds. Without releasing the lock, press the Home button for 10 seconds. Hold down the Home button then release the lock button. Keep holding the button for 30 seconds, after which the Redsn0w will start the procedure. When you see a gray background on the screen, you can release the button.

Jailbreak iOS 5.1 Untethered

Jailbreak iOS 5.1 – Tethered jailbreak mode

Step 7: Now, each time you restart iOS-device, you must to connect it to your computer in transfer mode and jailbreak with a special Redsn0w function. In order to get the iPhone and the iPad bound mode, go to “Extras” and click “Just boot”.

How to Jailbreak iOS 5.1

Booting Semi-Tethered Jailbreak iOS 5.1 (Optional)

In order to get insurance in those situations where you haven’t a computer, you can install the tweak SemiTether (repository The utility offers a compromise between the untethered and tethered jailbreak, allowing you to reboot your iOS-device any time.

Jailbreak iOS 5.1

This technology has one feature – loaded into this mode, gadgets lack some important features. Although, after a reboot with Redsn0w, all features are back to your iOS device.

Unlock iPhone after iOS 5.1 jailbreak

If you need to unlock iPhone 4, 4S, or 3GS using Gevey SIM or Ultrasn0w (current version is only compatible with iOS 5.0.1), updated to official firmware, You can Use Redsn0w 0.9.10b6 for making custom IPSW-file without updating your baseband.

To do this, go to the Extras section and select the Custom IPSW. Specify the original iOS 5.1 IPSW file, and then continue to build the firmware. After the building procedure, put the iOS-device in DFU mode, click Pwned DFU from the Extras section and restore with the custom firmware through iTunes. After this procedure, you can unlock your iPhone using Gevey SIM.

Update#1: RedSn0w updated to 0.9.10b6b with new OS X bug fixes.

  • Download RedSn0w 0.9.10b6b for Mac (link)
  • Download RedSn0w 0.9.10b6b for Windows (link)
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Stephan Popov
When iDevice users experience problems with the iOS software or unlocking, it is not uncommon for their lives to unravel. My passion is providing answers to your problems. I help iPhone, iPad and iPod Touch users by recommending fixes for common iOS bugs and tools that improves your experience. I conduct in-depth research for every topic i cover on this blog, to ensure that I cover everything Apple users need to troubleshoot their issues. When not writing for UnlockBoot, i enjoy swimming in my backyard pool. P.S. i prefers the Maldives for holidays. Connect with me on Facebook, Google Plus and Twitter.