i was using my surface about two weeks ago. it was working good than i put it down and a few hours later it would not come on. I thought it was the charger so i got i new one. (its the official plug). I plug it in the light on the charger comes on for 5 minutes then shutoff. I unplug it and then plug it back on. The light comes back one. This is what I tried 1. I hold the power down for 30 seconds and nothing. 2. I hold the power for 30 sec. release and then vol. up and power for 15 sec. still nothing but when I do this when I hold the vol. up and power down the light on charger turns off then back on. Still wont work. Plug in power when I do these.