Blackra1n

Credit

Vulnerability, Exploit: geohot

Info

This is geohot's latest jailbreak utility. It is an updated version of purplera1n but now uses geohot's implementation of the usb_control_msg(0x21, 2) Exploit. It has been released for Windows and Mac. It will jailbreak all devices on 3.1, 3.1.1 and 3.1.2. It will even jailbreak OTB iPhone 3GS and iPod touch 3G.

As of November 3rd, blackra1n also unlocks and hacktivates the iPhone 3G and 3GS running baseband 5.11.07 (pushed out with the 3.1 release). After installation, opening the 'Blackra1n' app on your iPhone will reveal a blacksn0w option for unlocking your iPhone.

How to use

All you have to do is head to the blackra1n website and download the application on to your computer. Then, plug in your iDevice and press "Make it ra1n". Then you wait. As this is a non-ramdisk based tethered Jailbreak, the iDevice may not boot. If is does not boot, just press "make it ra1n" again.

Installing Package Managers

The Blackra1n procedure installs an App on to the device, APTly named "Blackra1n" that handles the package manager installation. With it you can install Cydia or Rock. After installation, the device will respring and the package manager of your desire will be on your SpringBoard. After installing, you may remove the Blackra1n App using the "uninstall" button within it. Don't worry - this does not remove the Jailbreak, just the App to install Package Managers if you no longer need it