It is easy to update device firmware using the firmware upgrade program in tio-tools. Download the latest firmware (if available) from the product pages on this site. Using linux, macOS, or WSL, first install tio-tools and then use the following command:
$ tio-firmware-upgrade -r /dev/cu.usbmodemXXXXX CSB-R10-firmware-2019-03-25-e47a22.bin
-r flag specifies the path to the device serial port. It is possible to use any supported transport; if you can talk to the device via USB, serial, or ethernet, you can upgrade it.