True or False: The VEXnet joystick firmware should be downloaded when batteries are changed.

The assertion that the VEXnet joystick firmware should be downloaded when batteries are changed is false because changing the batteries does not affect the firmware of the joystick. Firmware refers to the software that runs on the hardware (in this case, the joystick) and is typically updated only when there is a new version available or when a specific issue arises that necessitates an update.

In practice, you only need to update or download the firmware when there are changes to the software environment, such as installing a new version of ROBOTC, or if there are specific bugs or features introduced that require a firmware update. Therefore, the act of simply changing batteries does not require a firmware download.