Hitachi dr zx won't communicate

I've been having problems that seem to be electrical with my ex100-3. I bought one of the Chinese dr zx diagnostic tools, but I can't get it to work, always tells me there is a communication problem.

I have read several threads about these things, some claim they are junk, others have had some luck with them. There is a common belief that the program is the problem, not the cord. It is the windows XP version, not the one with the palm pilot, instead it uses a palm pilot emulator on your...

Hitachi dr zx won't communicate

Hitachi dr zx won't communicate