Originally Posted by peterleinchen

There is also a slight possibility that the download is broken.
So if you know the checksum of the specific firmware revision file (there were/are lists in the web) then check or download it once more and compare.

I would also try once more:

Code:

flasher -f -F c:\main.bin --erase-user-data=secure -F c:\emmc.bin --erase-mmc=secure --no-preserve -c

without much hope indeed.