well i'm going to need your full address in order to post it to you and i'll add my address with it for a return post
but before we do first thing is those 4 pads on the back.. those are serial interface
i surgest that you try that to reload the unit
though it's a high baud rate i think it could be maybe a usb port but it directly talks to the loader as far as i'm aware (i could be wrong) but still try it with a ttl 5/3.3v serial to usb but watch the baud rate as a slower rate just gives you garbage.
INFO IS MOSTLY FROM OTHER SITES I FIND WITH WHAT OTHERS HAVE FOUND SO FAR AND I TAKE NO RESPONSIBILITY TO ANY DAMAGE CAUSED TO YOUR TABLET!