Denon Avr X4000 Firmware Update Upd ((exclusive))

Why Update the Firmware?

If your Denon AVR-X4000 is displaying " " (Updating) and appears to be stuck,

. Do not power off or unplug the unit while "UPD" or a progress bar is visible. Legacy Support Note denon avr x4000 firmware update upd

1. Your receiver is connected to the internet via an Ethernet cable or Wi-Fi.
2. You have a computer or mobile device with internet access.
3. The receiver is turned on and set to the correct input.