Now there is a similar problem with Edge 800 of my another friend. I have used GarminCure3 and then formatted internal memory with HDD Low Level Format Tool. Then i have formatted it in Windows 10 ad tried to load the normal firmware according to the manual (it has been successful with the Oregon 450) [Only registered and activated users can see links. ]. But now when I type > Updater.exe gupdate.rgn in the next command prompt and start the Edge (connecting to PC with USB cable and pressing power button) and press Enter the Updater starts but do not see any device in the USB connection Window. I tried several times and all the same. The Updater gives Windows Error 2 code. What to do now?