If you had the 16XX (1600,1601,1602, etc.) error while trying to jailbreak your iPhone or iPod touch on 3.1.1 firmware this post will fix it for you. This utility works on both Mac and Windows.
iH8sn0w released iREB 2.2 for those who getting error 16XX after restoring, download iREB 2.2 for Windows or Mac from here, unzip the tool to your desktop. After restoring your iPhone to custom firmware if you get error 16XX then apply the iREB patch and that’s all. To apply patch run the application select your iPhone or iPod then follow on screen instructions.
Jailbreak iPhone 2G, iPhone 3G, and iPod touch 1G on 3.1/3.1.1 Firmware
