I guess I made a BIG mistake: Got here a Falcon with CB 5771 (yeah, the one unsupportet!) , wired up the USB SPI Flasher and made several dumps of my NAND. I didn't noticed that it is a 5771 and not a 5770 , so I tried to flash it with Xell and booted it. JTAG was also wired up, but as supposed it didn't work. So I flashed the original back and it didn't worked at first. Then I unsoldered the JTAG and reflashed it again, all fine and it was working again. I still was stupid enough to not check the CB and tried again to flash another Xell image, JTAG rewired, not working, flashing back original und now I have a RROD with 3 lamps and no video output... did M$ noticed the JTAG and blew another eFUSE!?!? WTF, why did it worked in the first place? I guess its bricked now or can I do anything about?! (except glitching, and I'm not even sure with that)... thanks for any help.
PS: I noticed that it switches my powersupply from orange to red, never saw this before....