I bought a Vizio VTAB1008 from Walmart the other day. They told me that it was the last one they had, and that it was their demo model. I can't get it unlocked from 'demo' mode. I have no access to my privacy or security settings, and every time I turn it off, it keeps turning itself back on in 'demo' mode. I was told that there is firmware for this, but where do I get it, and how do I put it on my tablet? Any help that anyone can give me would be greatly appreciated!