MyMPx.org - Rockusb=Ok but Firmware Upg? HLP

Hi everyone.i have this mp4 player http://www.epathchina.com/8gb-28-inch-full-touch-screen-mp4-player-p-704.html

One day it closed when playing mp3 and not opened.when i connected it to usb,it said "new device found".i dont have any cd.

Rockchip-RK2608A K9H8G08UIM(samsung)-PCB0 Etrantech-EM636165TS-7

It was saying "welcome"and"goodbye" I found RK2608A driver and manage to show it to pc (windows xp). Now " +Class for rockusb devices -rockusb device " appeared.the green arrow is appears when connect to usb but didn't appears anything on My Computer(explorer).so i cant get enter in it.Ifound some firmwares and tried to update with consumerupdate but ı got this"Manufacturer of NAND Flash not be supported.".what should ı do now?I cant open it.no lights no signs of life...