It appears that the firmware patch doesn't work for the DriveLux50 :( The firmware flashes correctly, but the device still complains about "Maps are corrupt and cannot be used".
And, yes, I tried the following:
- Downloading the map to the device directly instead of an SD card
- USB and SD card flash of firmware
- using an unlocked img
- trying unlocked maps via Mapsource and Mapinstall
So far, no luck :( Any suggestions?