I have a Samsung Note Tablet GT-N8013 i bought new in February 2013. My device will not turn on. I dropped a rather heavy piece of plywood from about 2 foot high on the screen. The plywood hit the tablet with the corner and made for a very concentrated impact point. I had a case on it with a flip over cover for the screen. I lifted the cover and to my surprise the screen wasn't broken and the device still worked. Well it wasn't until about two hours later that i was downloading a PDF file and when the screen timed out i couldn't get it to wake back up. The device still had about 20 percent battery at the time. I a very detailed video on disassembly. I feel confident that i could replace anything wrong but don't know where to start. Any suggestions? And also I have tried holding every button combination for over 60 seconds.