About a year ago, I bought a 7 inch Android tablet on line...paid about $59, and thought I got a good deal. I never really used it though, and just put it away in a drawer...still in the box. I now have wireless in my home, and a smart phone, and discovered the tablet while cleaning today, and would like to use it. It doesn't seem to have a power cord that will attach to a wall outlet in my home, so I plugged it into my computer and hoped I was charging it, but nothing has happened, and it doesn't power up or come on. What should I do?