How to Jailbreak iPhone iOS 4.2.1 using Redsn0w 0.9.6b4
Redsn0w 0.9.6b4 works to jailbreak iOS 4.2.1, but for many devices it remains a tethered jailbreak. A tethered jailbreak means that you have to connect the iPhone or iPod touch to your computer and run redsn0w every time the device reboots or runs out of battery. Only the iPhone 3G, older iPhone 3GS, and older … Read More