Connect your SPARK Flex Motor Controller to your computer with a USB-C cable.
Open the REV SPARK Flex Client application.
The Client should automatically scan and connect to your SPARK Flex.
Once the SPARK Flex is connected via USB-C select it within the Connected Hardware.
The Hardware Client will open up on the Basic tab. To update firmware select the Update tab after selecting the SPARK Flex from the Connected Hardware list.
Under SPARK Flex Firmware, select download to download the latest version of the firmware.
Once the firmware has downloaded select update.
The update process will flash the firmware image onto the SPARK Flex. The status bar will show the progress of the process.
Once the firmware update is done your SPARK Flex will show a new status of Up-to-Date.
