Well, I succeeded, at last. System is 4.01 and also bootloader has been updated to 1.25.

It seems that formatting to FAT on PC did help. In trials before I let Eclipse to format the card, so it should have been formated correctly… But maybe was not. The formatting seemed to take very short time in Eclipse, so maybe it was not done because of some reason and card stayed FAT32 or whatever it was formated to years ago….