As to whether the DM500HD box can have a USB port, and to search for it with Google search, it seems possible, but also, when thinking back years...
I dropped my DM500HD and it is now stuck on the ferrari logo and green led. I had a look inside but cannot see anything disconnected or broken....
Both sides of the Pcb stripped of nearly all components. Slightly damaged, but can be useful. Pictures are examples, see the pdf (size 4mb) for...
