This is the latest firmware version.Here's the intallation method I used
1.Download the FS12.zip on your system first.
2.After unzipping it by Winzip Program and
then you can see two files such as a
'FS16.obj' and a 'Fromdos.exe'.
3.Reboot your PC and just execute the
'Fromdos.exe' in c on real mode Dos.
4.There will be the screen of the fromdos program,
then go to "File" and click "Open".
5.Choose "FS12.OBJ" and go to "Flach Download" of "Flash".
6.After checking the message,"Download Complete,Reset Your PC",
enter 'Esc' key and hit the 'Exit'
7.Downloading process are finished after rebooting your PC.