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Re: Cannot start to work
There are two work arounds. If you can copy the data from the card via a card reader, save it to the desktop of a computer. Plug in your garmin to the USB. Transfer the card data to the Garmin folder which should have come up when you plugged in your garmin.
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Question: What should I do if my Garmin nuvi or zumo displays the message "No Detailed Maps Found That Support Routing" or "No Map Data Available?"
The "No Detailed Maps Found That Support Routing" or "No Map Data Available" 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
reason being you may not have an SD card inserted with maps otherwise your maps have been deleted. try running the map update on the unit and it should reinstall the maps for you... if the SD card is not missing you may have a faulty SD card or SD card slot.
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.
Contact Garmins Tech support hot Line they will walk you through the process and if they can't fix it over the phone they will send you a disk that will completely fix the "NO detailed maps found that support routing" I have contacted them with the same problem and the disc was free of charge.
You can download new maps..........free......................but..........
I had this problem last year with my garmin 200 and when I called they said that I was out of the 60 day time window for a free map upgrade but they would give it to me anyway. They gave me detailed instructions on how to download a new map free of charge but they didnt explain which selection replaced what I already had on mine.
As a result, I downloaded the wrong maps and have much less detail. Even though its the "2009" version, its less acurate than my old maps were. But its worth a shot, better than paying for them.
If you are a bit technical, copy the contents of the card to a folder on a PC. Plug in the Garmin. It should assign a drive letter to your unit. Open that drive letter and navigate to the folder GARMIN. copy the contents from the card to this location. There should be a file called gmapprom.img. You need that file as that's your map file.
Take note that it may take considerable time for it to copy it to the Garmin.