Yes, I was talking about the software and not the maps.
You can see the firmware version in KvaK's post http://prius-club.su/index.php/topic,2651.600/msg,93200.html as well, he has VA00102A
On the disk partition named "13" in the EXE/TU05 directory there are similar files like in the zip/TU05 directory. I was trying to overwrite them: the firmware remained the same (VA05100L) but some glitch appeared in the gui. For example all the numbers were missing from the phone menu, I was able to push them, but I couldn't see them. I replaced the files again with the original ones, and everything went back to normal.
