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When I turn it on it says "Can t Unlock Maps? What does this mean?

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The "Can't Unlock Maps" message appears because the unlock code is missing from your satnav. To solve this problem follow the instructions below:

Remove any microSD / SD cards in the device

To retrieve unlock codes you need to have your satnav registered with garmin. If you haven't already registered it connect the satnav to your computer and go to https://my.garmin.com/mygarmin/customers/myGarminHome.faces and click "Register your garmin device". Follow the prompts. You'll be asked to create a username and password. Write them down and keep them safe. You'll need them anytime you need to update your maps or solve problems in the future.

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)
If you have a second maps you may also need to unlock it e.g. if the first map is USA and second is EUROPE this may also need to be unlocked
  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
After unlocking the maps they may need to be enabled as described below.

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

Posted on Sep 17, 2010

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1 Answer

Cannot unlock the maps in my garminedge 705. When i turn unit on message comes up cannot unlock maps


Information on unlocking garmin maps can be found at http://www.fixya.com/support/r6197735-no_detailed_maps_found_support_routing

There's more information there than you need since the article is about garmin nuvi satnavs that display a message "No detailed maps found that support routing" but part of the article deals with locked maps. The principle is the same for the garmin Edge but you'll need to skip to the part that deals with unlocking maps.

Jan 02, 2011 | Garmin Edge 705 Handheld GPS Receiver

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"can't unlock maps" ????


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

May 30, 2010 | Garmin nuvi 1300 Car GPS Receiver

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I get the message "no detailed maps can be found that support routing. The nuvi cannot be used without them." and I can not get to anything else on the garmin.


Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} 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 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

Jul 18, 2009 | Garmin Nuvi 200w 250w 260w 580 660 670 680...

1 Answer

Garmin 750 cant unlock maps


Map unlock codes are specific to each unit. You will need to contact Garmin to obtain a code to unlock the maps.

Jul 10, 2009 | Garmin (010-00583-00) for nuvi 750/760/770

1 Answer

When the "no detailed maps found that support routing" screen comes up it covers any of the icons, so I'm unable to do anything.


Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} 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 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

Jul 07, 2009 | Garmin nuvi 260W GPS Receiver

1 Answer

Unable to unlock new maps


Where did you download the Australian maps from? If from Garmin, contact Garmin for the unlock code. Maps have to be unlocked to a specific unit.

If you downloaded the maps from the internet, you will still need to contact Garmin for an unlock code.

Jun 14, 2009 | Garmin StreetPilot c340 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

1 Answer

My Garmin nuvi says ''maps unavailable''


Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} The "No Detailed Maps Found That Support Routing" message may appear 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 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
Normal 0 false false false MicrosoftInternetExplorer4
    /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} 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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