Question about Garmin nuvi 1300 Car GPS Receiver

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"can't unlock maps" ????

When I turn on the unit, it says "loading maps", then says "can't unlock maps". I click "OK". It then says "no detailed maps foundthat support routing. The unit cannot be used without them". What do I do now????

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  • 503 Answers

Sounds like you have a Garmin and i don't use garmin, but it seems to me that i remember and keep running across the fact that you have to have a map key to use the maps and it sounds like this unit (if it is a garmin) has lost it's key, in which case you have to contact garmin to get the key and directions on how to install the key.

Or and you may get lucky on this, if you have the original CD disk you can reinstall the original software and this should install the key code as well unlock the units maps

Posted on May 31, 2010

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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

My maps on my Garmin Nuvi 205w GPs device are lock and I can't use it hoe do I unlock the maps to use my device again?


If you are getting the message “Can't unlock maps, your unit will not function without maps” on your Garmin device, there is an issue with the mapping on your device.
Please follow the steps below to restore the mapping:
  1. Go to www.garmin.com and log into myGarmin account. (If you haven't already registered your satnav you'll need to in order to log in)
  2. Select myMaps
  3. Click Manage Maps and Downloads
  4. Below the appropriate device, select the "Details" link
  5. Look for the Unlock Code listed on this page
  6. Copy all the unlock codes for your device
  7. Close your internet browser
  8. Right click on your desktop
  9. Click new, and then click Text Document
  10. Click on the newly created Text Document icon from the desktop
  11. Type your unlock codes into the document
  12. Click File and Save as
  13. Change the file name to gmapprom.unl
  14. Change the “Save as type” to "All files"
  15. Close the document you should see the file gmapprom.unl on your desktop)
  16. Right click on the gmapprom.unl file and then click copy
  17. Connect your Garmin device to your computer and click Computer/My Computer
  18. Click on the 'nüvi (drive letter:)'2
  19. Right click on the Garmin folder and click paste (see next line for nuvi 1xxx series)
  20. For nuvi 1xxx series devices, the gmapprom.unl file is required in the ".System", "Garmin" folder which is a hidden system folder. In order for you to see the hidden system folder:
    • For XP:
      1. In MyComputer go to the Tools menu and choose Folder Options...
      2. Select the View tab
      3. Select the radio button next to "Show hidden files and folders"
      4. Uncheck the box next to "Hide protected operating system files (Recommended)"
      5. Click OK
    • On Vista:
      1. In the Computer window go to the Organize menu and choose "Folder and search options"
      2. Select the View tab
      3. Select the radio button next to "Show hidden files, folders, or drives"
      4. Uncheck the box next to "Hide protected operating system files (Recommended)"
      5. Click Ok
Safely disconnect your Garmin device from the computer to complete the process. If you are having any issues duplicating the steps above or are still receiving the message "Can't unlock maps, your unit will not function without maps” please contact Product Support.
1 The device must be registered to view the Unlock Code.
2 In My Computer, some units may be labeled 'garmin (drive letter:)'.

Aug 04, 2010 | Garmin nuvi 200W GPS Receiver

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

2 Answers

Error message coming on the screen when i start it


Hi,

please follow the procedure 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


All the best
Regards
Richard.

Apr 24, 2009 | Garmin nuvi 205W GPS Receiver

1 Answer

Garmin Quest: Not able to upload detail maps


hi bud, just had the same problem. hard reset i.e turn off unit, hold down ok, page and then the power button at the same time. it should then ask you if you want to delete all data. select yes and then you should be able to upload your maps again, this worked for me good luck

Feb 18, 2009 | Garmin Quest GPS Receiver

3 Answers

NO DETAILED MAPS FOUND TO SUPPORT ROUTING


You need to unlock the unit. I had the same problem with one that I have. Try this:

The No Detailed Maps Found That Support Routing message could be due to 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 get 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: https://my.garmin.com/mygarmin/customers/myGarminHome.faces
  2. Select myMaps.
  3. Select Manage Maps.
  4. Select the device from the drop down menu.
  5. The unlock code is located under the "Maps installed on this device" section.
Creating an unlock code file:
  1. Plug your Garmin device into the USB port.
  2. Double-Click on My Computer or Computer located on the desktop.
  3. Double-Click on the Garmin or nüvi drive.
  4. Double-Click on the Garmin folder.
  5. Right-Click in a blank space in this window.
  6. Move your mouse over the word New.
  7. Select Text Document.
  8. Press Enter / Return on your keyboard.
  9. Double-Click on the New Text Document. This will open the New Text Document in a window called Notepad.
  10. Type the unlock code that is listed in the Manage Maps section of your myGarmin account in all upper-case letters with no spaces before or after.
  11. Select File.
  12. Select Save As.
  13. Change the Save As Type to All Files.
  14. Type gmapprom.unl in all lower-case letters for the File name.
  15. Select Save.
  16. Close the Notepad window.
  17. Delete the New Text Document file.
  18. Disconnect the GPS device from your computer.
*nuvi x70 owners with transatlantic mapping will need to follow the Creating an unlock code file instuctions above for their U.S. mapping and then create another unlock file for their European maps:
  1. Plug your Garmin device into the USB port.
  2. Double-Click on My Computer or Computer located on the desktop.
  3. Double-Click on the Garmin or nüvi drive.
  4. Double-Click on the Garmin folder.
  5. Right-Click in a blank space in this window.
  6. Move your mouse over the word New.
  7. Select Text Document.
  8. Press Enter / Return on your keyboard.
  9. Double-Click on the New Text Document. This will open the New Text Document in a window called Notepad.
  10. 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 before or after.
  11. Select File.
  12. Select Save As.
  13. Change the Save As Type to All Files.
  14. Type gmapprom1.unl in all lower-case letters for the File name.
  15. Select Save.
  16. Close the Notepad window.
  17. Delete the New Text Document file.
  18. 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.
If you continue to receive the No Detailed Maps Found That Support Routing message after completing these steps please contact Garmin Support: http://www.garmin.com/garmin/cms/site/us/support/supportcontact

Feb 03, 2009 | Garmin nuvi 260W GPS Receiver

2 Answers

Unlocking IQue 3600 maps


Even with the maps unlocked it they can appear to be locked.
There are little known flags to diable/enable the base/detailed maps.
Check that the boxes are checked under the <Map><Options><Misc>
You can select either base or detailed maps there.
Disable both and it looks like the unit doesn't have any maps.

Aug 21, 2008 | Garmin iQue 3600 GPS Receiver

2 Answers

I can't unlock my maps


Buy your map updates from Garmin, and Garmin alone.... then you can call on their excellent full customer support. They even supply you with an unlock code when you purchase maps direct from them as part of the deal. (these numbers will be recorded with Garmin, so contact them if you lost yours).
If you download maps from 'shady' sites, you get shady programs too.
Some maps downloaded have been found containing trojans to send details of your linked bluetooth products (phone details, computer details)

Hope this helps.

Garmin rep.

Dec 28, 2007 | Garmin eTrex Summit GPS Receiver

3 Answers

Uploaded Map Update 2008 City Navigator North American NT now maps locked


I held on the phone with Garmin for about 2 hours, but they fixed my unit, PATIENCE!

Oct 19, 2007 | Garmin StreetPilot 2720 GPS Receiver

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