Nicole,there is this thing about china players,the
Board ID.This is the only trustworthy identification of the player.This is your best basis to find a compatible firmware for your player.
Have a look at here in how to find the Board ID.
http://s1mp3.org/en/docs_hwspecs.php#boardid
For your firmware.
http://www.mympxplayer.org/s1-mp3-pl...om-vt8747.html