dell venue pro 11

So my father may have effectively bricked a dell venue 11 he got off of ebay. He was trying to get around the Bitlocker and he believed the solution was to delete the hard drive. Needless to say that was a terrible Idea, it can no longer do system restore nor can it even factory reset, I cannot...

A day ago my computer was just working fine. I came home later and turned it on and browsed through products and when I went to look for something and came back the computer froze and there were bunch of random colored lines and pixels and I couldn't move the mouse pointer, so I turned it off...