"Flashing" the board means that they rewrite the code onto the EPROM or whatever memory they use to store the code. The DOS program they gave you just allows you to read the sensors and EXV position directly.
Originally posted by hvac-alan
I contacted Carrier on Friday. They gave me a software program (DOS) that could give me all the thermistor readings in real time and the position of the EXV. I need to get a Telebyte Model 65 Converter in order to hook the unit's board to the my laptop. Is this what you are referring to??? And have you done this before. Apparently I hook up to the no. 3 and 6 pins of the J8 plug on the board.