The unit will display on the front panel.
: The update can take up to 1 hour . Do NOT turn off the power or remove the USB drive until "Update Complete" appears. Troubleshooting Common Update Issues Denon Avr-x520bt Firmware Download
Select to view your current version. Official Firmware Download Method The unit will display on the front panel
Before searching for a download, verify if you already have the latest software installed: Power on your . Denon Avr-x520bt Firmware Download