Dead (Mini-usb) service port

Hi, Ive had my DM800se clone for some years now but ran into a problem with no ca found. When I attempted to flash thru the service port I found that the usb-mini-B had come off its contacts. After reconnecting it, Windows could not recognize the device. With several tries at putting a new mini-B in, I get the same indications and sometimes nothing at all.

Is there any other way to flash a image without going thru the service port, or is my box now worthless?

Any advice would be greatly appreciated, thanks.