Question about Garmin eTrex Legend GPS Receiver

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Garmin nuvi 750 GPS

Can't unlock maps on GPS, can't find the mapsource

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There is a serial number associated with your maps and your GPS unit. You will be able to get this serial number from Garmin when you register your software. Mapsource comes with the maps on the same disc. If it is not installed on your computer, it will automatically install.

Posted on Dec 13, 2008

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1 Answer

I downloaded maps to my nuvi and my computer. How do I open the maps on my computer?


Just download Garmin MapSource. With this you can also easily transfer your maps to any Garmin GPS device.

Mar 13, 2011 | Garmin nuvi 1450 GPS Receiver

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Nuvii 660 shows maps are locked


Hi,

You can do a factory reset to restore the factory defaults back.

Jun 28, 2008 | Garmin Nuvi 660 GPS Receiver

1 Answer

Gps has lost its maps, screen says can't unlock maps


There several reasons you may receive the message Can't Unlock Maps on your nuvi or zumo device.
  • Can you press OK and get to the Where To/View map screen?
  • Did you load maps to the unit using the MapSource or MapInstall program?
  • Did you load maps to an SD data card?

If one of the points above applies to you, please follow the steps below to clear the Can't Unlock Maps message:
  1. Remove SD card from unit, if applicable.
  2. Plug the unit into your computer with a compatible USB cable.
  3. Open MyComputer/Computer icon. (Mac users skip this step.)
  4. Right-Click on the Garmin drive and select Open. (Mac users can locate the Garmin drive mounted on the Desktop.)
  5. Open the Garmin folder.1
  6. Locate a file named gmapsupp.img
  7. Right-Click and delete file named gmapsupp.img
  8. Safely disconnect your unit from your computer to see if the Can't Unlock Maps message is gone.

1. Nuvi 1100/1200/1300/1400/1600/3700 and Zumo 665 users will open the Map folder instead.

*If the gmapsupp.img file does not appear in the Garmin folder, please create an unlock file for device.

Nov 28, 2010 | Garmin Nuvi 265W GPS Receiver

1 Answer

Can't unlock maps on the SD card


I am still waiting for the promised free solution suggestions

Jun 12, 2009 | Garmin nuvi 350 GPS Receiver

1 Answer

Unable to unlock maps for garmin nuvi 200 I am having trouble getting new stuff on my Garmin Nuvi 200. I registered it thinking it would let me download mapsource and it didnt. So then I got a pirated...


Here's a thought: instead of trying to install pirated maps which don't/won't work on your unit, how about actually buying the maps which are guaranteed to work. You will get a free copy of Mapsource on the disk with the maps of Europe.

Feb 01, 2009 | Garmin nuvi 200W GPS Receiver

1 Answer

Unable to unlock maps for garmin nuvi 200


Soution:

1. Use Mapsource to find the unlock code for NT v8 (from Utilities->Unlock Maps...).
2. Using Notepad, edit gmapprom.unl file on the unit (under Garmin folder) to replace invalid code with the correct 25 character unlock code (no spaces or dashes) and hit Enter key and save.
3. Reboot.

Dec 03, 2008 | GPS Devices

1 Answer

I cant download mapsource to install my australian map cd


If the CD is from Garmin, it will already have Mapsource on it, and it will install when it is installing your maps onto PC. If you ever install any other maps, the CD will check to see if Mapsource is already installed and will skip this procedure.

Jul 18, 2008 | Garmin Nuvi 660 GPS Receiver

1 Answer

Carl


Unless you already made a backup copy, which you can restore back to the Garmin. The only solution is to buy a copy of Mapsource and register it with Garmin. Garmin will supply a unlock code based on the map registration number and the unit serial number.

May 18, 2008 | Garmin nuvi 350 GPS Receiver

1 Answer

Mapsource update CD


Hi check out this wed site, it will help. HT maps for the Nuvi are NOT for PC use. The map load onto the GPS as you install Mapsouce. Reinstall Mapsouce and take option 3 on the startup page of the program.

Good luck
Craig



www.gme.net.au/garmin/mapupdate/update2008.pdf

Dec 28, 2007 | Garmin Nuvi 660 GPS Receiver

2 Answers

Garmin nuvi 250 mapsource


Verify that you have the correct basemap for the country that you are in. There are two maps inside a new Garmin. The basemap which shows all the major highways and mapsource which shows all the street. If you don't have the correct basemap try changing 'Navigation' Advoidance to avoid highways and Toll Roads.

Sep 25, 2007 | Garmin nuvi 350 GPS Receiver

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