Jailbreak iPhone 3.1.2 Firmware with blackra1n

George Hotz (aka geohot), the kid who was the first to unlock the original iPhone back in 2007 and then iPhone

3GS in July of this year is back! This time he is the first one to release jailbreaking solution for the new iPhone 3.1.2 Firmware for all devices through his new tool called blackra1n. blackra1n is a software tool which can jailbreak (not unlock) all iPhone’s (iPhone (Edge), iPhone 3G and iPhone 3GS) and iPod touch’s (iPod touch 2G and 3G) running on firmware version 3.1.2. blackra1n is currently for Windows only, a Mac version of this app can be expected soon.
UPDATE: An updated version of this guide for blackra1n RC3 with blacksn0w can be found here.

So, what is blackra1n? blackra1n is a 30 second ALL device 3.1.2 jailbreak. Even the ipt3, but the ipt3 is tethered. In order to boot it, just rerun blackra1n.

Image via ModMyi

Follow the steps below to jailbreak all iPhone’s and iPod touches on OS 3.1.2:
Note for iPhone 3G and 3GS: Do NOT upgrade to iPhone 3.1.2 with blackra1n if you want to keep your unlock as doing so will result in upgrade of your baseband which will make it almost impossible for you to unlock.
Step 1: Download and install the latest version of iTunes (download link given below).
Step 2: You will now need to first update/restore to the original iPhone OS firmware 3.1.2 on your iPhone by using the latest version of iTunes. Download link for iPhone Firmware 3.1.2 is given at the end of the post.

Step 3: Download blackra1n for Windows (download link at the end of the post).
Step 4: Start blackra1n app. If you are on Windows 7 or Vista, run the app with “Windows XP Compatibility” mode by enabling it from the “Properties” tab to avoid any errors during the jailbreak process.
Step 5: Click on “make it ra1n”:

Step 6: Let the app do its thing and wait for the phone to automatically reboot.
Step 7: You should now have “blackra1n” in the list of applications on your iPhone. Run “blackra1n”, download Cydia and let it install it.

Image Credit: elmarseillais

Step 8: Finally reboot your iPhone. Voila! You should now have fully jailbroken iPhone or iPod touch running on firmware 3.1.2.
UPDATE 1: PwnageTool 3.1.4 has been released which can Jailbreak iPhone on 3.1.2 while keeping its baseband intact to 04.26.08. Complete step-by-step jailbreaking guide for Mac OS X can be found here and for Windows here. Unlocking guide for iPhone 3G and 3GS on 3.1.2 firmware can be found here.
UPDATE 2: blackra1n is now available for Mac OS X as well. Download link plus complete step-by-step instructions guide on how to jailbreak iPhone/iPod touch using blackra1n on Mac OS X can be found here.
UPDATE 3: Follow the step-by-step guide posted here to fix missing carrier name or logo on your unlocked and jailbroken iPhone 3G/3GS running firmware 3.1.2.
UPDATE 4: Follow the step-by-step guide posted here to Enable Tethering on iPhone 3.1.2 Firmware.
UPDATE 5: You may also like to check out How to: Patch MobileInstallation File on iPhone 3.1.2 Firmware.
UPDATE 6: Native MMS functionality in Messages app on iPhone 2G can now be enabled using the step by step guide posted here.
UPDATE 7: Fix Push Notifications on Hacktivated iPhone 2G/3G/3GS running iPhone firmware 3.1.2 can be found here.
UPDATE 8: blackra1n RC2 is Live. Click here for more details.
UPDATE 9: blackra1n RC3 with blacksn0w is now available. Follow the complete step-by-step guide here to jailbreak, and here to unlock iPhone 3.1.2 firmware with 05.11.07 baseband.
You can follow me on twitter or join our facebook fanpage to keep yourself updated on all the latest iPhone jailbreaking and unlocking releases.
Download iTunes
Download iPhone 3.1.2 Firmware
Download blackra1n for Windows (UPDATE: blackra1n RC3 Now Available)