I had this issue and it took me forever to fix. Here is what you do. First rename your sbf file to something short (I named mine 201.sbf) and put it in your root directory (C:\). Browse to C:\Program Files (x86)\Motorola\RSD Lite, right click SDL.exe and go to properties Click the Compatability tab and check the box that says "Run this program as an administrator" and hit okay Then hit start and run "cmd" Once at the command line type cd c:\ "C:\Program Files (x86)\Motorola\RSD Lite\SDL.exe" -f 201.sbf -t 2 That was the only way I could get it to work. If I had the long file name it failed every time. Good luck!