Head unit died during firmware upgrade

I had some difficulty getting my main unit to communicate with the PC, after I updated to the latest serial/USB driver everything worked fine.

I decided to do the controller update from the file menu but for some reason it terminated before it had finished. The head unit is now dead.

I have read the FAQs and tried reconnecting but it won’t work.

I connected the ACQ222 to the controller and to the PC

Then started the Aquatronica program and

selected on the upper left File, then controller update

The PC will try to connect the controller, but it fails.

I also tried starting the Aquatronica program and

selected on the upper left File, then system update

The PC will try to connect the controller, but it fails.

have anyother suggestions to bring this back on-line?

thanks

Stan