Recently, Geohot released Blackra1n to jailbreak iPhone and iPod Touch with iPhone OS 3.1.2 within seconds. The jailbreak tool has been developed for windows users. We might see the Mac version soon. With Blackra1n you can also jailbreak iPod Touch 3 (ipt3), but the ipt3 is tethered. It is important to note that blackra1n doesn’t hacktivate your iPhone which means that if you are not on an official Apple approved carrier BlackRa1n cannot activate it. Follow the simple steps below to jailbreak iPhone OS 3.1.2 firmware with blackra1n.
Warning – iPhone and iPod Touch users with unlocked iPhone 3G and iPhone 3GS, should not upgrade to iPhone OS 3.1.2 using iTunes as they will lose unlock because baseband cannot be downgraded. Instead use PwnageTool to update to 3.1 without updating baseband.
Steps to Jailbreak iPhone OS 3.1.2 firmware with blackra1n
Step 1- Connect your iPhone or iPod is to the computer
Step 2- Download blackra1n to your computer desktop and then double click the blackra1n executable file to start the program.
Step 3- A pop-up window will appear with make it ra1n button. Click on ‘make it ra1n’ button.
Step 4- Automatically your iPhone or iPod Touch will be placed in recovery mode.
Step 5- blackra1n in running in background and then your iPhone will reboot.
Step 6- After reboot process is completed your iPhone is jailbroken and you will notice a blackra1n icon on the desktop.
Step 7- Click the blackRa1n icon to launch the application (internet connectivity is must to complete the process).
Step 8- Select Cydia and then press the Install button at the top right of the screen to download and install the package you selected.
Step 9- You will notice Cydia icon on iPhone springboard. Your iPhone with iPhone OS 3.1.2 firmware installed is now jailbreaked.