Question about Garmin nuvi 205W GPS Receiver

2 Answers

"Cannot unlock maps" when GPS is disconnected.

I downloaded the map for the nuvi Garmin GPS but when i disconnected it from my computer it displayed an error message that said "Cannot unlock maps". When I clicked okay, it showed another message that mentioned how the nuvi cannot work without the maps and there is no button to go away from that message.

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  • Anonymous Apr 20, 2009

    I have the exact same issue. I just bought the Nuvi and was prompted to update the map when I registered online. Now it doesn't work.

  • jb3469 Apr 21, 2009

    I have the same problem. When I registered my 205W, it said that I was eligable for a map upgrade. I downloaded it and now I cant even use my GPS. It says that there are no detailed maps loaded and that the Nuvi cannot be used without it. Has anyone found a solution to this problem?

  • happynblondy Apr 22, 2009

    for some reason mine is saying the same thing. I have no idea why....it works and shows me the roads and stuff but when i turn it on it says 'cannot unlock maps". any ideas on how to fix??

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Hi,

Go to your account at garmin that you created to manage your maps.

Click myMaps

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


All the best
Regards
Richard.

Posted on Apr 26, 2009

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I tried deleting and recreating that file and it didn't work. I ended up on the phone with Garmin for 2 hours the other night. There's a problem with the update for the maps. If you call them (early in the morning will have the least wait time), they will remote into your computer and change the install file then reload the maps and it works like a charm.

Posted on Apr 27, 2009

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There several reasons you may receive the message Can't Unlock Maps on your nuvi or zumo device.
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  • 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

My Garmin nuvi 200 says no detailed maps found where can I download a map


You may not need to download a map. It's possible that the map is there but not selected or that it's locked. I'll give you details first of how to solve this problem and then I'll give you details of how to get a new map. Your satnav must be registered with garmin to unlock the map or to download new maps. If it's not already registered you can register it at https://my.garmin.com/mygarmin/customers/myGarminHome.faces Click Register Your Garmin Product and follow the prompts. You'll be asked to create a username and password. Write them down and keep them safe. You'll need them again anytime you want to update your satnav.

The "No Detailed Maps Found That Support Routing" message may appear on your device for the following reasons:
  • The GPS device is missing it's unlock code
  • The maps on the GPS device have been disabled
To determine the cause of the message, touch the screen until the message "No Detailed Maps Found That Support Routing" disappears.
  • If you see a "Can't Unlock Maps" message following this error, remove any microSD / SD cards in the device and follow the instructions below for Retrieving your unlock codes followed by the instructions for Creating an unlock file
  • If you do not get the Can't Unlock Maps message then skip to the instructions for Enabling maps on the GPS device
Retrieving your unlock codes:
  1. Log into your myGarmin account
  2. Select Manage Maps
  3. Select Details
  4. The unlock code is located under the Installed Maps.
Creating an unlock code file for PC:
  1. Plug your Garmin device into the USB port
  2. Double-Click on My Computer or Computer located on the desktop
  3. Right-Click on the Garmin or nuvi drive
  4. Click Explore
  5. Double-Click on the Garmin folder
  6. Right-Click in a blank space in this window
  7. Move your mouse over the word New
  8. Select Text Document
  9. Press Enter / Return on your keyboard
  10. Double-Click on the New Text Document. This will open the New Text Document in a window called Notepad
  11. Type the unlock code that is listed in the Manage Maps section of your myGarmin account in all upper-case letters with no spaces
  12. Select File
  13. Select Save As
  14. Change the Save As Type to All Files
  15. Type gmapprom.unl in all lower-case letters for the File name
  16. Select Save
  17. Close the Notepad window
  18. Delete the New Text Document file
  19. Disconnect the GPS device from your computer
Creating an unlock code file for Mac:
  1. Open the TextEdit application located in the Applications folder on the Mac HD
  2. Click Format
  3. Select Make Plain Text
  4. Type in the unlock code that you retrieved from your mygarmin account. The unlock code should be in all capital letters and with no dashes.
  5. Click Save As and name the file as gmapprom.unl (Note: Be sure to uncheck the box If no extension is provided, use .txt)
  6. Copy the gmapprom.unl file to the GARMIN folder on your device. (Note: Save the file directly to the Garmin mass-storage device if connected)
  1. Plug your Garmin device into the USB port
  2. Double-Click on My Computer or Computer located on the desktop
  3. Right-Click on the Garmin or nuvi drive
  4. Click Explore
  5. Double-Click on the Garmin folder
  6. Right-Click in a blank space in this window
  7. Move your mouse over the word New
  8. Select Text Document
  9. Press Enter / Return on your keyboard
  10. Double-Click on the New Text Document. This will open the New Text Document in a window called Notepad
  11. Type the European unlock code that is listed in the Manage Maps section of your myGarmin account. This will need to be typed in all upper-case letters with no spaces
  12. Select File
  13. Select Save As
  14. Change the Save As Type to All Files
  15. Type gmapprom1.unl in all lower-case letters for the File name
  16. Select Save
  17. Close the Notepad window
  18. Delete the New Text Document file
  19. Disconnect the GPS device from your computer
Enabling maps on the GPS device:
  1. Touch the wrench icon on the Where to/View map screen
  2. Touch Settings
  3. Touch Map
  4. Touch Map Info
  5. Select the checkbox next to the maps to be enabled on the device
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Aug 08, 2010 | Garmin nuvi 200W GPS Receiver

1 Answer

I have a Nuvi 250W and just downloaded new maps from Garmin (bought the online lifetime option). Now I only have the major routes on the display. I seem to have lost the minor roads? How must I fix...


First press tools, then settings and then maps. Press map info and the name of your map should be displayed with a tick beside it. If there's no tick press the map name and a tick will appear beside it. The map is now selected and should be ok.

If that doesn't solve the problem it may be because the map is locked. To unlock the map follow the instructions on http://www.garmin.com/garmin/cms/site/us/support/searchsupport and that should solve the problem.

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1 Answer

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1 Answer

Garmin Nuvi 200 Maps Disappeared


Hi,
Hope this helps!

I wanted to add maps to my 250W. I found the maps I wanted on a Torrent. However, many searches around various forums never revealed how to install these. Found the following through reading and experimentation.

1. Downoaded map image file GMAPSUPP.IMG. Download also gave me "Use code XXX when generating unlock code for maps"
2. Downloaded Garmin Unlock Generator 1.3 by JetMouse
3. Looked on my GPS to find the UnitID
4. Entered the UnitID into Garmin Unlock Generator. Ignore the GM XT device unlock code and the top Generate button.
5. Selected Map Product as Custom and entered the code given for the downloaded image file.
6. Hit the bottom create button to generate a 25 digit code.
7. Download Img2Gps and run
8. Click Load Folder to load the image file. Select the tick next to it.
9. Check the Use Unlock Key option and paste the 25 digit code in.
10. Load a blank SD card into your Garmin
11. Connect the Garmin to your PC using a USB cable. You should see two dirves in windows: one is the Garmin and the other is the "Removable Disk" SD card.
12. Create a folder called "Garmin" on the SD card
13. Select Folder/Card in Img2GPS
14. Click "Copy Maps". Select the folder /Garmin on the SD card. You may need to click copy again.
15. Upload will take a while.
16. You should now see a file GMAPSUPP.IMG on the SD card in the /Garmin directory.
17. Create a new text file called GMAPSUPP.UNL in the same directory (make sure it does not have a hidden .txt extension).
18 copy the 25 digit unlock key into this file.
19. Close the file.
20. Disconnect the Garmin.
21. On Startup it should load your original maps and the new ones.

May 28, 2009 | Garmin nuvi 200W GPS Receiver

2 Answers

It says . cant unlock maps.


Hi,

Follow this below


Go to your account at garmin that you created to manage your maps.

Click myMaps

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


Regards
Richard.

May 18, 2009 | Garmin Nuvi 255 GPS Receiver

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