Just a heads-up for anyone with a Denon AVR-X520BT – if you’re considering a firmware update:
According to the AVR-X520BT Online Manual , the standard procedure is as follows: Denon Avr-x520bt Firmware Update
Unzip the downloaded folder and copy the update file directly to the of your USB drive (do not put it inside a folder). Connect to the Receiver : Power on the Denon AVR-X520BT. Just a heads-up for anyone with a Denon
: Download the latest firmware for your specific region and model. Place the file directly in the root directory or the specific folder instructed by the download notes. Initiate Update Denon Avr-x520bt Firmware Update