Malagutti,
Mine is QY-066AV1 (2007.03.20).
The only firmware I can find that works for it is called MP039_firmware_ver2
That firmware can be found in Alex's pack
http://mympxplayer.org/firmware-9-v9...res-df602.html
Sorry for the late post. I tried to post a reply a few days ago with a picture of my player's pcb but it did not work.