I haven't tried it, but some research this morning indicated the way to update all the EEPROM settings with those from a new firmware build is to send the printer an M502 command followed by an M500 command. M502 loads the processor RAM variables with values from the firmware stored in flash memory, and M500 updates the EEPROM block with data from the variable space. The research confirmed that without doing that, the older settings in EEPROM will continue to be used.