Looking for bks75TJ13004 v2 firmware
 

I have two mp4 players, but the two have a strange problem. They play some mp3, but others are damaged (Format error). But, sometimes, the damaged mp3 were reproduced!

Someone told me that I need to upgrade the firmware, so i hope you can help me.

The specs are:

Board: BKS75TL1300 v2key (And have a logo that says B Kee)
firmware: (displayed on Settings->Firmware version) bksc13012_30 / 2007-10-08 / 9.1.52 / 2005-01-09
Chip: ACU7513 GS1100CA


thanks in advance.