Check to see if the pins shorted out on the laptop USB port. There is a 5V supply here and if it contacts ground it will kill the laptop. Bend them so they are not touching each other or the metal housing and it should fire up. If you need the port replaced we can do this for you.
I plugged in a External USB Hardrive while it and the notebook was turned on. The notebook shut down and I can't turn it back on. Please HELP ME.