Final answer:
Updating the firmware of the VEXnet joystick ensures optimal performance, stability, and access to new features. It fixes known issues and maintains the device's efficiency over time.
Step-by-step explanation:
Before using the VEXnet joystick for the first time, firmware should be updated to ensure that the device is running the most current software. This process is important because it can improve the performance of the joystick, fix known issues, and sometimes add new functionalities. Firmware updates typically address bugs and enhance the stability of the device, leading to a more reliable and efficient user experience. It is crucial to regularly check for firmware updates even after the initial update, to maintain optimal performance and take advantage of any improvements made by the manufacturer.