cahin000 & sliir ,
Is MP3 Utilities Upgrade Tool or Disk Tool able to detect the player?
If so, then you'll need to try all the v9.0.xx series firmwares here
http://www.mympxplayer.org/actions-9...mare-dc37.html until you get one working properly with your player.
Alternatively, search the CD that came with your player, sometimes the firmware file might be inside.