Question about Garmin nuvi 310 Car GPS Receiver
Got unlock map code and dvd for it but still says can't unlock maps when put everything in on laptop
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Posted on Jan 02, 2017
SOURCE: Cant unlock maps
What is the Garmin 510 that can't unlock maps stating exactly? And to Nici07 who said, "Need to unlock device", are you referring to a PIN lock or locked maps?
Posted on Jan 21, 2008
SOURCE: NUVI 310
You will need to erase a file from the units memory. Connect your GPS system to your computer; go to start then ‘My Computer’, and double click on your device file (mass storage system), there you will see a folder named ‘Garmin’.
In this folder are several different files, look for file named gmapsupp.img. Right hand click on this file and delete as this file is causing the maps to lock.
Posted on Dec 09, 2008
Have you tried updating the unit at Garmin's Website?
Let me know if you need help, I can get you the right web-link if needed.
Posted on Feb 28, 2009
Go to your account at garmin that you created to manage your maps.
Click Manage Maps
You should see your unit and it’s unlock codes
Copy all the unlock codes for your device
Close your internet browser
Right click on your desktop
Click new, and then click a new Text Document
Click on the newly created Text Document icon from the desktop
Type your unlock codes into the document
Click File and Save as
Change the file name to gmapprom.unl (( double check this please ))
Change the “Save as type” to "All files"
Close the document
You should see the file gmapprom.unl on your desktop
Right click on the gmapprom.unl file and then click copy
Plug your Garmin device in and then click Computer/ My Computer
Click on the nüvi drive
Right click on the Garmin folder and click paste
Safely disconnect your Garmin device from the computer
Posted on May 19, 2009
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