Put it in the wall plug and leave it charging overnight.
Then try following:
1) Press and hold power button for 30 seconds.
2) Press and hold power button and 'n' button for 30 seconds. Make sur eit's 30 seconds.
If that doesn't work, then you'll have to go into a store and see if they know some other way.
tried that and it didnt work. I will call support tomorrow afternoon.