For location of firmware files please check our github repository: InovelliUSA/Firmware: A centralized location for Inovelli device firmware files. (github.com)
Make sure you have a recent version of Z-Wave JS. If you don't see the same interface as below it is likely you need to update your system.
Find the device in the Z-Wave JS control panel and expand it to see its options.
2. On the left side, click on the "OTA UPDATES" link and then click "UPDATE".
3. Read the prompt and then click "UPDATE" when you are ready.
4. There will be a status indicator on the right side of window to show you when the update is complete.