What can cause this issue:

[diegohv]

I should stick to the one I do.

Preferred method
Using a terminal that can send G-Code.
M502 reverts to the default "factory settings". You still need to store them in EEPROM
M500 stores parameters in EEPROM

Another Way.
Using the LCD with Marlin loaded
Restore Fail-safe, Load Defaults then Store Memory

Any changes made then stored will then be the system defaults after reboot.

Thank you very much. I'll try to see if this solves the issues.


Regards,