

Since Cydia included in this version of Redsn0w is not compatible with iOS 4.2.1, you can use the following steps to install a patched version of Cydia.
#REDSN0W 4 2 1 HOW TO#
If you are using the final version of iOS 4.2.1, a better solution would be to download redsn0w 0.9.6b4, but it provides a tethered jailbreak for most devices. This Is A Very Easy Jailbreak Tutorial That Will Teach You How To Jailbreak Your iPhone 4S, 4, 3Gs, 3G And iPod Touch 4th, 3rd, and 2nd Gen MC Models On 4.1. The recently released Redsn0w 0.9.6b3 can jailbreak all iOS based devices including the new A4 devices like iPhone 4, iPad and iPod touch 4G.
#REDSN0W 4 2 1 UPDATE#
While it’s exciting that the latest update has already been jailbroken, the lack of a functioning Cydia app makes it impractical for most iPhone and iPod touch users. The iPhone Dev-Team has released a new version of redsn0w that can jailbreak iOS 4.2. When finished, the device will auto-reboot and it will be jailbroken on iOS 4.2.1 GM.Factory reset DOWNLOAD (choose your Software Version)Gear 2. Turn off your iPhone and make sure it is plugged into your computer This armor set is associated with Bastion of Twilight and Blackwing Descent.Select that you want to Install Cydia, and click Next.Launch redsn0w 0.9.6 and direct it to the iOS 4.1 IPSW file.Make sure that atleast Install Cydia is selected. RedSn0w will recognize the firmware, now hit the Next button. Step 4 Hit the Browse button and select the downloaded iOS 4.2.1 firmware. Update/restore to iOS 4.2.1 GM firmware using the IPSW Once your iPhone / iPod Touch / iPad is running iOS 4.2.1, execute the downloaded RedSn0w 0.9.6b4.

Download iOS 4.2.1 GM and iOS 4.1 IPSW (here are iOS 4.1 IPSW downloads if you need them) The iPhone Dev Team are still working on exclusive untethered jailbreak for iOS 4.2.1.They have released a new version of Redsn0w to support single click.Download redsn0w 0.9.6b2 for either Mac and Windows.1 jailbreak for iPhone 3GS, iPhone 4, iPad 1, iPod Touch 3G, iPod Touch 4G). You will need iTunes 10.1 before getting started, here are the directions: There are two big in the CPRE-ALE exam questions - software and online. The process to jailbreak iOS 4.2.1 GM with redsn0w 0.9.6b2 has been confirmed by RedmondPie to work on an iPhone 4, and while it’s a little screwy it does work.
