NOTE: Just completed the installation and was supremely frustrated when the screen didn't turn back on. My first inclination was that the 3rd connector wasn't seated properly...so I opened up and re-attached 3 times. With girlfriend peering over my 'soon to be a failure of a bf' shoulder, I asked her to google up a 'hard reset'. Eureka. Hold down the black nav button and the top power button at the same time until the silver apple reappears. Crisis averted, great tutorial otherwise!