Redsn0w is an alternative jailbreaking and unlocking tool to blackra1n for both Windows and Mac. It also enables users to personalize iPhone firmware’s with customized boot and recovery logos without having to use iTunes as there are no custom IPSW files involved. If other jailbreaking tools such as blackra1n, PwnageTool and sn0wbreeze didn't work for you, you can always give redsn0w a try to see if it solves all your problems.
iPhone OS 3.0.1 has been released to fix SMS exploit which could remotely control the victim’s iPhone. This guide will help you update to the latest iPhone firmware 3.0.1 while keeping your jailbreak and unlock intact. This guide applies to all the iPhone’s – iPhone 2G, iPhone 3G and iPhone 3GS.
