: Refinements to Dolby and DTS decoding algorithms. Preparation for Download
Because this model lacks a built-in Ethernet or Wi-Fi connection for direct updates, you must use a physical USB drive.
If you want to make sure your update goes smoothly, let me know:
: Unzip the downloaded firmware. Place the file directly in the root directory (the top-level folder) of the USB drive. Do not use an extension cable. Forums - Linus Tech Tips Step 4: Execute the Update Plug the USB drive into the on the front of the AVR. menu on your TV. Update Start Update Start
Insert the USB drive into the front-panel port of the receiver. Navigate to > General > Firmware > Update Start . The Update Process :
: Visit the Denon Global Support or the specific regional site (e.g., Denon Europe or Denon Asia) and search for "AVR-X520BT Firmware."