The Cube Pro firmware can either be updated via wireless connection or by using a USB mass storage device.
I may get great new features, speed improvements and other such benefits eventually, but really I'm just an unofficial beta tester.
However, there are a few reasons that not all firmware updates might be seen as firmware 'upgrades'...
You've all heard the saying "If it ain't broke, don't fix it", and it's true!
You'll have to send it to a service centre to have a new board fitted.
Alas, if it's out of warranty you may decide it would be more cost-effective to buy a new printer.