I really can't prepare windows to ADFU (recovery state) position. My player is always recongizable as disk drive, actuall two drives (F: and G

. I tried also to uninstall drivers of Usb device and then put player again in usb and is the same shit. I have the right firmware, but if I upgrade my driver (as a flash drive) the mp3 upgrade tool tells me that is invalid firmware file.
My ID number is MP-693C-SL MAIN v.1.3. 20051214
So I found firmware (dumb.bin) exactly for this ID on
http://www.s1mp3.org.
So what can I do? Please help me, I would really appreciate. Jaka