Downloaded the file, no change. I hook up everything for transfer remote to pc as directed. My TIU uses the serial 232 cable which I successfully used before to download new sound files to locomotives and also just added a custom sound. Everything is working except this.
I inserted the USB end into a blue USB port even though the instructions don't mention it. When I press start first a message pops up to make sure phone is plugged into the right TIU input, which it is. Then on "save" the message is "unable to search for the TIU com # device attached to system not functioning. Another program may be using port."
Doggedly hoping for a really simple solution 😐.