Updated to R7 to support iOS 6
iREB 3.1.3/4.0.x/4.1/4.2.1/4.3/4.3.1/4.3.2/4.3.3/4.3.4/4.3.5/5.0/5.0.1/5.1.1/6/6.0.1/6.1/6.1.1/6.1.2 R6 is a tool for Windows that will put your device into a pwned state so that you can upload custom firmware to it. iH8sn0w has just released iREB r7, to fix iTunes 1600, 1601, 1602, 1603, 1604 error when you use custom firmware. its support all new & old devices.
Sn0wbreeze also know as PwnageTool for Windows, this tool will untethered jailbreak iOS on iPhone 4G, iPhone 3GS / 3G, iPod touch 4G / 3G and iPad without basebande update , setup custom boot logos, activate your iPhone, set a root partition size, build custom firmware, install SSH, and more.
[Updated for iOS 6.0.1 - 6 - 5.1.1 ]
In this section you will learn how to downgrade your iPhone, iPod Touch, iPad and Apple TV 2G to a lower or currently firmware version running without 3194 or 16xx errors. Additionally, you will also learn the best way to save your iFaith which will allow you to downgrade your iDevice’s firmware version in the future.Also you will learn how create a pre-jailbroken custom firmware without baseband upgrading . This is not for A5 device.