Download RedSn0w 0.9.7b7 on Windows to Untethered Jailbreak iOS 4.2.1 iPhone 4/iPad/iPod

Great news! In the near future, we can download RedSn0w 0.9.7b7 on Windows to Untethered Jailbreak iOS 4.2.1 iPhone 4/iPad/iPod. There are a few days since the release of RedSn0w 0.9.7b6, so Dev Team has spend enough time to speed up Windows RedSn0w 0.9.7b7. We believe RedSn0w 0.9.7b7 for Windows is on the way. Here is the detailed tutorial for how to use RedSn0w 0.9.7b7 to untethered jailbreak iOS 4.2.1 iPhone 4/iPad/iPod on Windows. You can save this article untill the release date of RedSn0w 0.9.7b7.



Preparation:

(1) Download Redsn0w 0.9.7 Beta7 for Windows/Mac from: http://blog.iphone-dev.org/redsn0w

(2) Download iTunes 10.1.1 for Windows / Mac OS X: http://www.coveringweb.com/2010/11/download-itunes-101-for-windows-and-mac.html

(3) Download iOS 4.2.1 for iPhone, iPad and iPod touch: http://www.coveringweb.com/2010/11/ios-421-is-live-available-to-download.html

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Note: If your iDevice has been tethered jailbroken, please start from step 1; if your iDevice has not been jailbroken, please start from Step 2.

The detailed steps:

Step 1: Connect iPhone 4/iPad/iPod to PC. Use iTunes 10.1.1 to restore iDevice to the official iOS 4.2.1 firmware - To do this:

Hold down the "Shift" key and click restore, select the " iPhone3, 1_4.2.1_8C148_Restore.ipsw".

Note: If encounter 1013 error, open your Hosts file, then add # before "74.208.10.249 gs.apple.com", that is "#74.208.10.249 gs.apple.com".

After restore the firmware, the system will automatically restart and then connect to the iTunes to activate the device. Then begin to jailbreak.

Step 2: Extract the downloaded RedSn0w.app; then click "Browse", and then select the 4.2.1 firmware - "iPhone3, 1_4.2.1_8C148_Restore.ipsw". Click Next to continue.

Step 3: Select Cydia and Jailbreak Monte (untether), and in the pop-up dialog box, select the corresponding device 4.2b3 firmware, then click Next.

Step 4: Enter into DFU mode: Maintain iDevice be turned off, and then follow the screen prompts, first press the Power button for 3 seconds, then hold down the Home button and Power button for 10 seconds, then release the Power button, but hold the Home key for 15 seconds. So, if you go to the next screen, you are succeeded.

PS: This process may be some long. Because RedSn0w is not the final version, so RedSn0w may take away all your remaining memory, so before jailbreak, close the software unwanted on the Mac. In addition, do not move the computer.

Step 5: Reboot the iDevice. Bingo!

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Latest Update Collection of JailbreakMe 3.0, RedSn0w 0.9.7b7 for Windows/Mac.

RedSn0w 0.9.7b7 vs Greenpois0n RC5, How to Choose for iOS 4.2.1 Untethered Jailbreak.

JailbreakMe 3.0 vs RedSn0w 0.9.7b7, How to Choose for iOS 4.2.1 Untethered Jailbreak.