I used this tutorial. Worked just fine, no problem. http://europecaraudio.com/diy-tutorials/how-to-update-pioneer-avic-f700bt-f900bt-f70bt-f90bt-system-t35.html
Tried to update f900bt (2.009000 version) eu unit with this firmware from .torrent file, copied files via total comander and after reboot got stuck in pioneer logo. So replaced back backup. What i did wrong?