Inventblocks Updater
This web-based tool updates the firmware for the Inventblocks boards. To get started, connect an Inventblocks board to your computer and hit the relevant button for your board. You'll then be prompted to select a USB port and then to install the firmware.
For Invent! ROBOT boards:
For Invent! REMOTE CONTROL boards:
USB Serial Drivers
If the serial port is not showing up, your computer might be missing the drivers for the USB serial chip used in your Inventblocks device (although most modern Windows and Mac computers should now have them installed by default). Here is a link to them.