Garmin Nuvi 610

[Brigitta Martini]

SoI begin to update my GPS's since it is the beginning of the year. I connect my Nuvi 2595LMT using the proper cable to Garmin Express (Windows 10) and it showed there is a map update and that the GPS is online. As soon as I hit the Update maps key it disconnects the GPS everytime. I have tried uninstalling and re-installing the GPS to Express. I have made sure the Express software was up to date. Express did allow me to update my Nuvi 67LMT without any issues. I tried again to update my Nuvi 2595 and still had the same issue. I was able to connect Garmin BaseCamp to my Nuvi 2595 though and do a little updating there. (I hope that i did not screw up my GPS by doing that??) Please help!!!

You won't screw up your device doing a map update via BaseCamp but it won't correctly update your nuvi, all it does is update the map. Other key files such as the one that provides junction views won't have been updated. If your device is switching off it's likely to be a battery issue. Ensure it's fully charged then try again.

I have the same issue. My 2595 GPS disconnects as Garmin Express starts. GPS is fully charged and the cable is fine. I have no problems with my other GPS devices. Garmin Express ver 7.3.0.0

Need help.

So the battery was fully charged. The cable is good and the socket is fine. All of this started when I updated my Garmin Express. It worked well with BaseCamp but stopped working with Express. It is almost like Garmin is trying to force me to buy a new GPS??? If it works with one program and not the other I dont think it is the GPS but the program its self.

Earlier research led me to a Microsoft technical doc - -us/troubleshoot/windows-client/backup-and-storage/garmin-usb-devices-not-working which claims the Garmin device boot code may need updated by Express.

It is only with Garmin express that this problem occurs. I can have my nuvi 2595 connected to the computer and use eg Garmin basecamp or explore its internal storage for any length of time. It's only when I start the Garmin express that it is disconnected. And, yes, I'm shutting down the other programs before I start Garmin Express. I even restarted my computer before I started Garmin Express. I have installed Garmin express on another computer, used another usb cable but the same thing happens. Garmin express finds the Nuvi 2595 and it turns green as if it is connected. 5 seconds later it is disconnected and turns gray in Garmin express.

1. Start NUVI by itself (not connected to a computer) and go to Volume Screen.

2. Press the upper right hand corner of screen for 10 seconds.

3. The Developers Screen will pop up.

4. Scroll down to MTP SETTINGS.

5. Change from AUTO DETECT to MASS STORAGE

6. Shut down NUVI and connect it to your computer with USB cable

Is there no way to move the existing maps to the SD card, and then force the update onto the SD card itself? There are also localization / misc updates that are queued for the device. I just don't know why I can't update anything despite having an SD card inside the GPS Unit.

Is it referring to your GPS or your PC though? Express requires up to 20Gb spare space on your PC, do you have that? If yes does the card show in Explorer when your device is connected? Does your card show in Express?

I was reading somewhere that even some little bit of space would need to be cleared from the Garmin device. I cleared the help files in the 20 languages that I'll never use lol. That should free up a couple MB of space. Maybe it doesn't start because it sees near zero space on the device, I don't know...

You certainly need a bit of space on your device, but if the card shows in Explorer it should also show in Express. Do you have the latest version of Express? Update if you haven't as that in itself can cause issues. Then look at Tools and Contents, Utilities. What does it say at the bottom in terms of storage for device and card?

The update seemed to move the entire map image and some other files to the SD card. The garmin device itself now has 1 GB of storage free while the SD card has 3 GB or so of space used (12 GB still free, more than enough for future updates should we need to go that route -- pun intended ;) )

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.

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.

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.

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.

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.

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.

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.

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.

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