J_ph wrote:
...you need to delete the firmware from the card after updating and replace it with a fresh copy of the PCBUFF folder before each update/device.
I was being a bit overly cautious in our discussion. Afterwards, I double checked, and the files which remain after a proper update are harmless should you wander into menu options and trigger another update. You don't need the firmware file after the update, so no harm either way.
Yes, one should reload the update to the card between Cyber Commanders (and between Einsteins).