technologue , your player might have it's firmware corrupted, so what i can suggest is to extract the firmware, then re-flash it again.

Try this Sigmatel extractor here http://www.mympxplayer.org/sigmatel-...tor-df195.html

After you create a firmware dump of your player, re-flash it back with the Uploader here http://www.mympxplayer.org/sigmatel-...der-df230.html

Hopefully it works for your player.