How To Jailbreak iPhone 3.1.2 Firmware with blackra1n RC2

** Update -- RC2 is out **
Fixed 3G issues
Tethered jailbreak for 3.1 OOTB ipt 8GB and new 3GSes
Fixed Icy issues
Both Windows and Mac
If you used RC1 with success, no need to rerun

blackra1n RC2 is Live! George Hotz (aka geohot) has released an update to his already popular jailbraking tool named blackra1n which can jailbreak all iPhone’s (2G/3G/3GS) and iPod touches (1G/2G/3G) running iPhone firmware 3.1.2. Here’s what new in blackra1n RC2:

• Fixed all issues that you might had when jailbreaking iPhone 3G with blackra1n RC1.
• Tethered jailbreak for 3.1 OOTB iPod touch 8GB and all the new iPhone 3GS’s.
• Fixed Icy issues.
• Works on both Windows and Mac.

So, what is blackra1n? blackra1n is a 30 second ALL device 3.1.2 jailbreak. Even the ipt3, but the ipt3 is tethered. In order to boot it, just rerun blackra1n.

Jailbreaking instructions are exactly same as it were with blackra1n RC1. Please refer to our step-by-step guides posted below on how to jailbreak iPhone 2G/3G/3GS and iPod touch 1G/2G/3G with blackra1n RC2:

• How to: Jailbreak iPhone 2G/3G/3GS and iPod touch 1G/2G/3G running iPhone 3.1.2 Firmware with blackra1n
  • On Windows
  • On Mac OS X

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Feel free to ask me any questions here should you run into any problems jailbreaking your iPhone or iPod touch with blackra1n RC2.

Download iPhone Firmware 3.1.2 
Download blackra1n RC2 for Windows and Mac OS X

blackra1n on Windows 7

I tried blackra1n on Windows 7, but it crashed when I first tried opening it. To get blackra1n to work on Windows 7, do the following:

1. Right-click the blackra1n icon and click properties.

2. Click the Compatibility tab.

3. Under compatibility mode click the box to enable it and select Windows XP (Service Pack 2). Click OK, and then run blackra1n.