Firmware for Denon dvd 2930 - Help me please!

Hello everyone, after a long time I return to the forum.
I am struggling with a Denon dvd 2930 that unfortunately has no audio, neither Cd nor Dvd at the analog outputs. The Cd works in HDMI but not the Dvd. The video is great, very stable, does not lose a frame. Excluding optical pickup problems, in Test Mode I noticed that in the firmware check I get BE 8283-B MAKE DAY 802 DSP 00.00.
In the service manual indicates that when the DSP is 00.00 means that first of all you have to insert the firmware in the FLASH ROM, if there are no other hardware problems.
I'm searching everywhere on the net but the links where to download the firmware do not make download anymore, the same in the official support page of Denon.
I was asking if you have the firmware for the 2930 (European version) mentioned above.
I really need your help.