What is the process for resetting the EEPROM after flashing firmware?

The process for resetting the EEPROM (Electrically Erasable Programmable Read-Only Memory) after flashing firmware typically involves sending specific G-code commands to the printer. The EEPROM stores persistent settings, such as calibration data, temperature offsets, and other configuration parameters. Flashing new firmware might not automatically overwrite or reset these settings, which can lead to compatibility issues or unexpected behavior. To reset the EEPROM, the most common method is to use the M502 command, which loads the default settings from the firmware, effectively overwriting any existing values in the EEPROM. Following this, the M500 command is sent to save these default settings back into the EEPROM, making them permanent. Alternatively, some firmware interfaces may provide a menu option or a button to reset the EEPROM. After resetting, it's usually necessary to re-calibrate the printer, including bed leveling, PID tuning for the hot end and bed, and other relevant settings, to ensure optimal performance with the new firmware.