I have been using my TF700T for a very long time. I used to have it hooked up to the keyboard dock, but disconnected it from the keyboard about 4 months ago. Now, I wanted to use the keyboard again, so I plugged it in. When I did so, the tablet would not turn on at all. When I had power plugged into the keyboard, the light would turn off when I plugged in the tablet to the keyboard, and then turn back on when I disconnected it. Now, that it is disconnected again, when I try to turn on the TF700T, nothing shows up on the screen, but the entire unit vibrates continually until I press and hold the power button along with the Volume-Up button for about 10 seconds; then it shuts down. I have tried using the reset pin-hole on the side of the tablet, it just repeats the issue. Ideas?