EC Manufacturing Service
This service should contain all the functionality that is need to perform self test, validation of the EC and special manufacturing modes. This service should be disabled on retail devices or at least protected to prevent unwanted modes.
Self Test
EC should perform self test and return results/details of test validation
Set Calibration Data
Have ability to store factory calibrations and setup information into EC non-volatile memory. For instance keyboard language information, or thermistor calibration values.