In a moment of madness I have somehow deleted my System folder off a BMW Nav V device. I have been unable to recover the folder. Is there anyway to get the System folder back onto the device without having to return it?
I guess you never made a back up? If you do get it working then please back it up.
If all that's missing is the system folder you should be able to run Express and get it to update your maps. Express knows from the GarminDevice.xml in the Garmin folder what your device is, and should recreate the .system folder and install the maps.