you would not even begin to guess how many people have had this very problem, you are not the first and will not be the last
all you can do is download and try as many firmwares for your player type as possible, look for firmwares which mention "onda vx858" clone etc as this is what this player design is based on
its too late now but i wish you could have seen this before
http://www.mp4nation.net/forum/viewtopic.php?f=6&t=3523
all i can say is look for new firmwares and its pot luck from there, you may hit upon one that works, with so many different variations on this design its hard to say what is what
try in the downloads on this site, in the onda forums on
www.mp4nation.net/forums/ and also here as someone claimed they had one that worked from this link
oo ppps ts bookmarked on myother machine, put it in later