i am trying to upgrade my Rev L TIU and remote from 4.x to 6.1. Computer is a Win10 home box which I have used successfully to download sound files. Instructions for upgrading to 6.1 says to jumper the two protocast mini phone jacks. When they are jumpered the loader cannot find the serial port. With the jumper is removed it finds the TIU no problem using any type of USB to USB or USB to 9 pin adapter.
What is the consequence of trying to load the update with the protocast jacks disconnected? Is there some sort of work around for this. My Win 7 box is long gone. Did I say I hate Win 10?
Pete