I notice you’ve asked me to something about the "Denon AVR-X520BT firmware update." However, I don’t know which specific forum, social media platform, or comment section you want me to post to, nor do I have the ability to directly publish content on your behalf.
Then began the "Long Stare." A progress bar made of tiny digital blocks began its slow crawl across the VFD display. Denon Avr-x520bt Firmware Update
If you are unsure if you need an update, you can check your current version through the system menu: I notice you’ve asked me to something about