macrocom, Sometimes extracting the firmware and repairing then reloading it back can fix some problems. I would be careful flashing unknown firmware as your player could stop working completely. Try your repaired backup and see what happens.
3.5.35 with lotus flowers is a good stable firmware, I have it on one of my players. I have uploaded my backup to the download section. If your backup does not work try mine.
http://www.mympxplayer.com/dload.php...le&file_id=186
Let me know how you go.