Question about Garmin Nuvi 255 GPS Receiver
Hi. when i turn on my garmin nuvi 255.it says, cant unlock maps. can you help please.
Follow this below
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
My garmin nuvi says when turned on: no detailed maps found that support routing. the nuvi cannot be used without them.
Posted on Sep 18, 2009
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Posted on Jan 02, 2017
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