HUGE UPDATE [5-2-2010]!

THE SPIRIT JAILBREAK HAS BEEN RELEASED – IT’S JUST LIKE BLACKRA1N, BUT IT’S AN UNTETHERED JAILBREAK FOR ALL DEVICES – CLICK HERE FOR MORE INFORMATION!

UPDATED ON 3-20-2010 — GO TO THE BOTTOM.

A lot of people seem to believe that a iPod Touch 2G with a MC-model seems to be impossible to jailbreak. Well, I just did, and it’s very simple. Steps after the jump.

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It basically works like this: Downgrade from 3.1.3 to 3.1.2, and run redsn0w 0.9.2 twice to jailbreak it.

To downgrade, download the iPod Touch 2G 3.1.2 firmware from here (the file name is iPod2,1_3.1.2_7D11_Restore.ipsw). Next, shift-click (Windows) or alt+click (Mac OS X) on the “Restore” button in iTunes, and point to that IPSW file you just downloaded. The restore process should begin. If you run into any problems or errors, leave it in the comments. You’ll need this IPSW all the time, so don’t delete it.

Once you’ve successfully restored and downgraded, download redsn0w 0.9.2 (Windows |  Mac). Once downloaded, run redsn0w from the ZIP. Click on the “Browse” button, and choose the IPSW file that you downloaded earlier. A popup will come up, asking you whether or not your iPod Touch 2G is a “MC-Model” device. Click on “Yes”, then the “Next” button. It will begin to do some fancy stuff. The next screen should have 2 checkboxes: Install Cydia, and “Just boot tethered right now”. Just check “Install Cydia”, and click on “Next”. Next, hold the Power and Home buttons until the screen on the redsn0w disappears (not on your iPod Touch). It will then jailbreak your device.

Now, since it will be a tethered jailbreak, you’ll have to run redsn0w once more to get it to your homescreen. Go through the same procedures as above (NOT the downgrading part, just the redsn0w part), but once you get to the screen with the 2 checkboxes, this time check the “Just boot tethered right now”, and click on “Next”, then follow the rest of the instructions.

Congratulations! Your iPod Touch 2G that was previously running 3.1.3, should now be downgraded to 3.1.2 and jailbroken (tethered).

Update, 3/20/2010: A lot of people have been having problems when restoring to the downloaded firmware (firmware is not compatible). Double check to make sure you’ve downloaded the proper firmware file. Also, this guide does not work for the 32GB/64GB iPod Touch 3G. If it came with 3.1.3 or has been updated to 3.1.3 from 3.1.2 without previously being jailbroken, then you’re out of luck. There’s no way to jailbreak those devices in those circumstances.