Usage:
 SF8163 [drive:][directory]filename [drive_No] [/f] [/c] [/p] [/o] [/i] [/l] [/s] [/m] [/r]

   filename     name of the download file.
   [drive_No]   drive location number you want to update firmware.
                drive location number is follows;
                0:primary master
                1:primary slave
                2:secondary master
                3:secondary slave
                If DRIVE_NO is omitted, the drive is detected automatically.
   [/f]         diable revision check
   [/c]         diable vendor ID check
   [/p]         diable product ID check
   [/o]         diable OEM code check
   [/i]         interactive mode
   [/l]         create log file
   [/s]         for SLOT type drive
   [/m]         No messages (silent mode)
   [/r]         recover ucom from critical condition.(recovery mode)

For example, to flash an 8163B connected as the secondary slave with the 8050L 
firmware from 8050L.dld:

SF8163 8050L.dld 3 /f /c /p /o

one or more of the "disable xxx" switches may not be needed, depending on the 
firmware already installed on the drive. If you get a message saying there is no 
CD/DVD drive, try the /r switch, but make sure you have specified the correct 
drive first and maybe use the /i switch so you get one last chance to confirm it.