I ran GarminCure3 : drag gcd file, choose CURE and Make firmware. I can see rgn file and Processing OK :) in message box. With finger depressing top left corner of screen, I connect my Garmin device to the PC running GarminCure. When a beep sound heard I clicked Updater.exe in GarrminCure3. ERROR : can't run updater.exe displayed in the message box. I could not access to the file system with GarminCure3.