I just purchased a Jtaggable xbox 360 and when I tried to update to 2.0.7371.0 through a usb flash drive, the console restarts after I press yes then the screen just stays black. The same thing happens when I try to play a game. I put the disc in then the screen just stays black. I have not Jtag'd the xbox yet and the dvd drive is flashed with LT+ 2.0. It's a Samsung drive.