Focus Cube v2 Old Firmware

[BrownBag]

I have a v2 Focus Cube that connects to the Unity Software just fine and it shows that the firmware is v1.3 Rev A but it doesn't give me the option to update the firmware to the current v1.5 Rev C. Is there another way to update it?

[timmoody]

I get the option to upgrade from 1.4C to 1.5C, but the upgrade fails with error messages about permissions that don't persist long enough to sort out. I had to reboot to recover, but was unable to upgrade.