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Nuvi 205W: How to remove an unwanted map region?

David-B-Sutton-Coldfield
over 1 year ago

I recently had to update a Nuvi 205W that has been kept in the family for many years for sentimental reasons. It has Lifetime City Navigator Europe Maps and has been used with most, if not all UK regions. 

Using the current version of Express, v7.17.3.0, I can only install a map region that will fit in the spare space on the device. It insists on installing Germany or Turkey, rather than updating the UK regions that were loaded previously. With Germany installed, choosing Change Map in Express only offers Turkey. I am in the UK so would really like the UK maps to be updated.

I was able to squeeze a few UK regions in using MapInstall, which was just enough for a recent trip from Birmingham to London.

I can't find a way to delete Germany (no offence meant $;-). I mean the map, of course.

Thanks for any suggestions.

  • 0 over 1 year ago

    This may help with your understanding of what is going on. You should be able to install all of the areas you want to a sd card. There is no need to delete Germany. There is a link in that post explaining what to do.

    forums.garmin.com/.../updating-uk-ireland-map

  • 0 over 1 year ago in reply to SUSSAMB

    Thanks for the suggestion. I did try fitting an 8GB MicroSD card in a full-size SD adapter. I think the computer recognised it but I didn't know how to use it so I took it out again. I'll have another go later.

  • 0 over 1 year ago in reply to David-B-Sutton-Coldfield

    Leave the card/adapter in the nuvi and perform the map update in the normal manner using Garmin Express.  If the maps you are downloading are large enough to exceed the internal memory capacity of the 205W, Express should handle the task automatically.

  • 0 over 1 year ago in reply to JohnfromPA

    Agreed it should but the post I linked to had some issues with that. If  has the same issues it can be done following the instructions in that post.

  • 0 over 1 year ago in reply to SUSSAMB

    OK, an update. Not working yet though. Thanks for the suggestions so far.

    I originally tried a Kingston 8GB Class 4 microSD card in the Kingston SD adapter that came with it. This was not recognised by either the 205W or Windows 10 with a Kingston USB3 Card Reader. I also have a pair of SanDisk 32GB Class 10 microSD cards with a SanDisk adapter. I tried formatting one of these in the Card Reader. That did not complete successfully, either in the microSD slot or with the adapter in the SD slot.

    Following the instructions in the post linked above was a bit better. With the Nuvi plugged into a front-panel USB socket, I was able to insert the SanDisk 32GB microSD in the adapter into the 205W's SD slot. Windows recognised that there was a new drive. I was able to format it, but I had to change one of the settings, namely the Allocation unit size. I had this set to 4096 but changed it to Default allocation size, as per the troubleshooting instructions. Formatting completed, Windows recognised a 29.7GB capacity mostly empty drive. It contains a hidden System Volume Information folder and a file called id.txt. I can read that file. It contains a GUID: ad166e4b-af44-450f-8931-01ccfc7f13b5. That is not included in the GMA files list in the main device Garmin folder.

    Restarting Express (without rebooting the PC because I am typing this), I can select the device. Map Details shows Germany 2024.10. Map Options, Change Map brings up the Select a Region page, saying the map update is too large and showing Germany and Turkey as the only regions that will fit.

    MapInstall can see the device but shows that there is 154.3 MB free, (6 KB used). It will only allow me to select a few regions around the Midlands before running out of space. That is as before. I also tried MapSource with the same result.

    There's no indication from either of them that an SD card is present or usable. So, if it is the SD card that is not being accepted by Express or MapInstall, what make and type should I use? The link that suggests buying one from Garmin doesn't work.

    Any suggestions?

    P.S. After trying MapSource, I thought why not try BaseCamp? I've not use it with this navigator. It started up, identified the 205W with the SD card and started reading gmapprom. However, it exited with Exception code: 0xc0000374 in ntdll.dll. That means heap corruption, so I will have to reboot now.

  • +1 over 1 year ago in reply to David-B-Sutton-Coldfield

    MapSource cannot read maps from a device as it's a much older program than BaseCamp. Can you confirm you've used Express to install the full map to your PC? Does that map appear in BaseCamp? If so, and if Windows recognises the card as you state, it should show in the lower left hand pane of BaseCamp under the device, which should also show in the left hand pane. You should be able to right click the sd card and select Install map ... select the area you want and install that to your sd card.

  • 0 over 1 year ago in reply to SUSSAMB

    I did install the full map onto the PC, although I moved it from the C: drive to the same folder on D: and make a shortcut.

    I reconnected the 205W to the PC after rebooting. Express was behaving the same way, so I started Basecamp. That exited with the same exception in NTDLL.DLL, but I'm not that easy to deter, so started it up again and it was able to read the memory on the Nuvi, including the SD card, which was nested under the 205W (top left for me, not bottom left).

    I was then able to follow your instructions, right-click on the card and Install map. it fired up MapInstall and I was able to throw a marquee around the UK maps, trim around the edges and then Continue. It took a while but went perfectly. I now have some 350MB of map on the SD card and an enormous amount of spare space!

    Express is behaving the same as before, even when Run as Administrator, so it's a waste of space on this device apart from software updartes. Basecamp on the other hand and MapInstall running from it seemed to do the trick.

    Thanks a lot for your expert guidance, again...

  • 0 over 1 year ago in reply to David-B-Sutton-Coldfield

    Glad it worked. Will close this now.