sunplus sphe8202s Need Help

Hi...

I have an OEM China made DVD player.

It works fine, plays DIVX VCD kodak PhotoCD, mp3 and much more.
It has Excelent image quality specillay for Divix files.

The only problem i've found is that it does not load DIVX subtitle

The chip is:

sphe8202s and on the chip we can also see:
010172
0611-h

There is another chip:

NEC
d4564
-A80-

and another one:

cd588c8
fc hc64


Anyone knows if is possible to update it, so i can play subtitles on DIVX files?

Thanks