I have an iPod Touch 2G on firmware 3.1.2 and my model number starts with a MB btw, not an MC. I've tried at least 50 times to jailbreak it with Blackra1n but not once has it worked for me. I've googled it and tried doing all those things like running as the administrator, logging as administrator, putting Blackra1n in the C:/ Drive but it still doesn't work. What happens is that I plug it in, disable syncing in iTunes, in tasks manager, I end the iTunesHelper, iPodService etc. and then I go to Blackra1n and run it as administrator and also from C:/ Drive. I press make it rain and then my ipod turns off. In a few seconds it goes to that screen that looks like this: http://km.support.apple.com/library/APPLE/APPLECARE_ALLGEOS/TS1275/TS1275.png After a little while, the screen goes to a blackish colour, and it reboots after a while, but nothing has happened. I know that the geohot boot logo is supposed to come up but it hasn't for all those times that I tried. I tried to downgrade back down to 3.0 but that didn't work either and it said that I had An unkown error (20). Please help me.. I don't know what else I can do. I've also tried doing this: "1. Press the power button and the home at a time and when you see the icon of the apple release the power but keep pressing the home until you see the photo of geohot with the Iphone. Let go home then." I've tried on another laptop and another computer and another 2 other user accounts.. =[ Help would be much appreciated.