Bought a used Apad on craigslist. Guy said it was working fine till he updated the firmware. Then the touchscreen went out. I downloaded and flashed it several times with different firmware but the screen is just locked. The man who sold it said he was able to get it working with a USB mouse but I do not have one to try it. What do you guys suggest I do? This is my 2nd tablet. I am having a little difficulty determining which model/type this one is. Any help you guys can throw my way would be awesome.Here are some pictures of the tablet. By the way this has no camera, is a 9volt, and has no led to show its being charged.