did u put it on charge? when you do that you should see a battery icon with a red line on the tablet screen that glows. if you do, then just leave it there and dont look at it for a couple hours..
after a couple hours the red line should go and your battery should be filled up to some level, now you should be able to turn it on..
Although i was able to turn on my tablet, it would turn off immed because of no charge and i kept meddling wiht it to see if it was charging or not.. which is why it would take longer..
finally i just left it alone for some time and the charge rose.. slowly but surely..
... and a quick question: For the charger, does your USB cable go all the way into the adapter? Mine only goes halfway in and if I test the USB cable on my cellphone charger it would go all the way in, which makes me wonder if the adapter is faulty...