[quote=“frank.von.thienen”]There is a jumper on the main board, but that is for flashing I thought.[/quote]Right. When storing to EEPROM it shouldn’t be needed (but as mine is always in place I can’t tell for sure so you could try to install it).
AFAIK the store command is M500.
You can also write the values in the configuration.h file and reflash your firmware.