The files in directory are the update tools for Windows.  
  --FWUpdLcl.exe          :Firmware update tool for Windows32
  --FWUpdLcl64.exe        :Firmware update tool for Windows64
  --1121501400.BIN        :Firmware version: 11.21.50.1400
  --UpdateMEFW.bat 	  :Batch command to update
  
Update command: UpdateMEFW.bat
     