: You might also see an option for an "MCU Update." This controls hardware-level functions like buttons and volume; it’s usually safe to update alongside the OS.

The XYAuto 9212B was a commercial success, and the firmware update was seen as a major achievement for the team. John had demonstrated his expertise in firmware development, and he was proud of the work he had done.

: If your CANbus or hardware buttons are acting up, you can often find an MCU update button under Factory Settings (common passwords: Important Considerations Last Resort

Inside, you should see files like: