Thread: GarminCure3 tool - the new way to create cure firmwares for Garmin devices

Try to backup all files from the Nuvi.
Scan your computer for Virus. or use a known Clean computer.
Format the Nuvi as described [Only registered and activated users can see links. ]
Create an Empty folder named Garmin.
Then Reflash firmware using GarminCure3 in original mode.
Nuvi 13xx can boot up without Files.