Ok, I've got the chip installed, wires are all in and the blue light is on. I boot up the xbox and first thing goes to the page where I select if I want to flash off the dvd drive / hdd / unlock hdd / lock hdd. I choose to flash off the dvd. I'm using the M8_plus_16.bin file and it tells me that it's an unknown flash! halting. I then tried a zillion other bioses as well all with the same result. I have another working v 1.0 xbox w/a matrix in it that works just dandy but this is for a friend. I've used a spiderchip before in a 1.6 and it flashed just fine. Any suggestions? I've also brought the hdd from my xbox to his xbox and chose to flash from hdd and did the m8_plus_16.bin bios and it still says unknown flash. It's starting to bug the heck out of me and I just might have a beer now. So, please, if you can think of anything... HELP!