If you loose your garmin gps data here is how you back it up and and update it.....
Home » February 2017
Sunday, February 12, 2017
INSTRUCTIONS FOR USING THIS FILE ON YOUR NAVI UNIT
Instructions for using this file on your Navi unit.
Part A – Internal Memory if you have more than 2.6GB free
1. Connect your device to the computer.
2. Go into the Nuvi files located in the Garmin folder and backup
the file named “gmapprom.img” to your computer.
3. Delete the “gmapprom.img” file from the device.
4. Rename the file you downloaded "gmapsupp.img” to “gmapprom.img”
5. Copy...
TOOLS YOU MAY NEED...
WINZIP
EXTERNAL 4 OR MORE GIGS SD CARD
GARMIN GPS
USB CARD THAT CAN CONNECT TO YOUR GARMIN...OR SD CARD READER....