Happened to me too, trying to figure out what to do as well.
Edit: Here's my plan. I can't get into xell so I'm going to hook up my nand-x and flash xell back on there with jtag tool 2.20. Then I am going to use my 9199 jtag backup from 360 flash and use that to create an image with freeboot...
So do I pretend I'm flashing it for the first time and go through all the steps with jtag tool or do I just put xell on it and flash it through xell with the file from freeboot toolbox maker?
Was just looking through the files I used to jtag mine and saw that I used Jtag tool, on a hunch I checked to see if coolshrimp updated the tool for 12611 and he has. I'm going to try this and see if this works. Here's the link: http://www.megaupload.com/?d=NWN4HQG2
You're in the same boat as me, save I have a falcon. You're going to have to flash via usb or lpt with a new version, I'm going to have freeboot toolbox maker make mine since that is what I used to go from 7371 to 9199 and it did the trick. This time I'll just have to use the steps I did with...
Got that, have a nandx, just wondering about how to make that hacked 12611. Can freeboot toolbox maker just make that for me? Then flashing this via usb is the same procedure as when I first put xell and whatnot on there?
nope, can't boot into xell. In which case I reflash back to the original dump or can I use my 360 fladh backup? After that, can I use my 360 flash backup file with this to get to 12611? Sorry, I'm such a noob.