i found out the revision code by flasher-3.5.exe -i , it seems to be 2101. i typed :
flasher-3.5 -c -h RX-51:2101 -2 2nd.bin-RX-51\:2101\,2102\,2103 -s secondary.bin-RX-51\:2101\,2102\,2103 -S usb
but the flasher says that " 2nd.bin-RX-51\:2101\,2103\,2103: No such file or dirictory "

What am i doing wrong ?