The term "202110b Mega" appears to be related to a specific version of Delphi. Breaking it down:
: Provides real-time parameters such as coolant temperature, battery voltage, fuel pressure, and injector calibration while the engine is running.
Certain advanced features, such as bi-directional control or key coding, require the hardware (VCI) to match the software version. Connect Hardware
The "Mega" software package allows users to go far beyond simple code reading. It provides deep access to the vehicle's electronic control units (ECUs). Multidiag Pro+ V3.0 OBD2 Diagnostic Tool User Manual
