Redsn0w 0.9.6b5 jailbreaks iOS 4.2.1 but also provides the added ability to install baseband firmware that can be unlocked for the iPhone 3GS and iPhone 3G. For other iOS devices, redsn0w 0.9.6b5 will simply jailbreak the device but some models will be a tethered jailbreak. It’s very important to remember that the 06.15 baseband update … Continue reading Jailbreak and unlock iOS 4.2.1 with redsn0w 0.9.6b5