Untethered Jailbreak for iOS 4.2.1 on iPhone, iPod i iPad [MAC]

Dev Team recently released a beta version of the application redsn0w,, able to enter the Jailbreak mode all untethered devices operating in the software iOS 4.2.1. Currently the program redsn0w 0.9.7b4 is available only for Mac OS X platform, but on Twitter one of the developers can read that are on-going work on a version for Windows. To be able to use the beta version, our device must have saved the file SHSH version 4.2b3. If so we have our device can be fully jailbreaked and will no longer need to connect it to your computer whenever will be turn off. Before begin, some important information.

Requirements: (TO DOWNLOAD FILES GO BOTTOM OF THE TOPIC)

- Mac OS X

- SHSH iOS 4.2b3

- File ipsw software iOS 4.2b3

- iOS 4.2.1 software on the device

- redsn0w 0.9.7b4

- No need to use Bluetooth (module is inactive)

Tested on iPhone 4th Download and run redsn0w 0.9.7b4. Click Browse 

 We point software file iOS 4.2.1 for our device. Files with the software can be found in the bottom of the topic.

 

 Hit Next. Then select the option Jailbreak Monte (untether).

Window will pop up, which should indicate the file with software version 4.2b3 iOS.

Hit Next. Procedure starts placing the device in DFU mode. We follow the onscreen instructions

Now we have to wait until after the root process device 

Our device will restart. From now on we will not have to connect it to your computer every time you reboot. 

 !DOWNLOADS!

iOS 4.2b3

RedSn0w 0.9.7b4