I have tried both blackra1in and the new redsn0w. Problem with Blackra1in is it gets stuck on running... and my iphone stays in recovery mode. Problem with redsn0w is it asks me to hold the power and home buttom together and thats pretty much it, nothing happens. So I tried to put it into recovery mode by holding the home button while plugging in, redsn0w detects it and does its thing but all I get on my iphone 3gs is a black screen, nothing more. Any idea guys? btw my serial number on my iphone has 28 as the week number so it should be an untethered one. Also I tried DFU mode with redsn0w aswell and that didn't work either. Edit: BTW I am on windows 7 64-bit if that is of any relevance.