To Change the Firmware on the Spitronics Mercury2/Mercury1/Venus1/Venus2/Pluto1/Pluto2/Saturn/Neptune1/Neptune2/EMU/TITAN all of these units still need the Firmware Programmer to change the Firmware to suit your desired engine.
For instance, if you want to change your Advance Spitronics Controller from 36-1 to 60-2 you will need one of these. All the newer controllers make use of Hot-Flash
