The device always has a small application (bootloader) that can do the firmware update. If the firmware update is stopped in the middle, for power failure reasons, all you need to do is do the firmware update again. After a successful update, the device will start with the proper application.
The firmware update can be done with USB cable or with over the network. Please get the relevant firmware and updating tools and manuals from http://www.cymaticaudio.com/downloads
Many thanks 🙂 🙂 Great help B) B)