Just thought I'd share about this one since I've come across this a couple times in the past. I've heard it suggested in a couple of places that if you come across a console with no power, to check all the connection ports to make sure there aren't any bent pins or metal pieces grounding out connectors. Since I rarely see it mentioned and see a lot of people that have posted about it in the past, with little to no avail, I thought I'd bring it up again. I just came across a console tonight that had bent pins in the USB sockets. I've been wanting to try out this solution and it fired right up when I straightened out the pins. Before I had straightened them out the console was just unresponsive...no flashing on the brick or console...nothing. In any case, I wanted to chronicle this for anyone else that might have this problem in the future. Other solutions involve voltage meters and mosfet replacements...this has been discussed in quite a few places. Good luck.