Jailbreaking iOS 4.2.1 with Redsn0w 0.9.6b4 on Mac OS X Go here to learn more about the drawbacks involved by a 'tethered jailbreak.' For example, this is a 'tethered' jailbreak which, for some, may involve hassle they'd rather avoid. A compatible version of Cydia is unavailable for the latest iOS right now, but the jailbreak is, in all senses, a go for iPhone, iPod touch, and iPad using the Team’s redsn0w 0.9.6 beta 4.īefore users proceed with following the steps below, Softpedia would like to note that jailbreaking is not particularly encouraged.Īlso, see this post for compatible devices and the particularities involving each device model with respect to this jailbreak. Minutes after the official release of iOS 4.2.1, the folks at the iPhone Dev Team were able to roll out a compatible jailbreak tool for those enjoying the benefits of a hacked device.