by entering your serial number. Ensure the file is placed in the root directory of the USB drive. Note Settings
: Insert the USB memory device into the USB port on the front panel of the AVR-X520BT. Initiate Update : denon avrx520bt firmware update top
Updating your receiver isn't just about new features; it’s about stability. A firmware refresh can: Improve HDMI handshake stability with newer smart TVs. Fix intermittent Bluetooth pairing issues with smartphones. by entering your serial number
