Quote Originally Posted by ddabcd277 View Post
Hmm...that is weird. Maybe you are not doing something correct. Don't care. [Only registered and activated users can see links. ] and put the SD card inside the nuvi and wait till the firmware loads. (...folder Garmin and 14.bin) After the FW loads you will have access to the memory. Delete the problematic files and flash normal firmware.
Downloaded all files and copied all to sd card.
Tried to start nuvi in 4 different modes
1) no usb, normal start
2) no usb, pre-boot
3) usb, normal start
4) usb, pre-boot = PC recognizes the unit for some seconds

In all 4 cases the screen only shows the garmin logo, nothing else
Shall I forget it and buy a new unit?