Latest large junction file

Frank, there have been posts regarding the large junction view file with the latest map release. Perhaps you can find the specifics, but as I recall Garmin isn't publicly supporting the large junction view files any longer, so I'm not sure if there is still a URL to get a new one.

I don't believe the 760 firmware supports any kind of junction view file.

Larry

There is a good discussion here.
http://www.poi-factory.com/node/38056

Correct, there is no JV feature with the nuvi 7x0 series. And also correct in that it's been reported that Garmin is no longer providing a link to the large JCV file for the current and future maps.

Frank, the best discussion of the JCV file issue is in this thread:

http://www.poi-factory.com/node/38056

[Edit: spokeybob beat me to offering this link. Curse you, nimble-fingered spokey! ]

The best option (when it worked) was the link provided by rame1012 on page 3 of the thread. Sadly, dropbox is now limiting access to this download due to too many folks downloading the large file.

Look to page 4 for the post from spokeybob and you may get some help.

The other way to get the large file is to find someone with a nuvi7x5 GPS model who has the current map version, then copy its JCV file to your 1490LMT.

The only slightly positive point to this whole issue is that it has been confirmed by Garmin that they have no problem with folks sharing this file, and consequently, there is not the potential issue of software piracy.

The worst-case scenario was also discussed on p 4 of the above thread when alandb whispered his fear that future map updates may not have the large full-screen JCV file provided for any nuvi model since the large file is now only used by the rather long-in-the-tooth 7x5 series. If this occurs, we then will have to individually decide whether we want to keep our current old map with the large file on our Fullscreen-JCV-enabled nuvi series--or update to the new map with its default smaller jcv file. (The other option, of course, is to go out and buy a new nuvi which will come with the large split-screen JCV file by default.)

Good luck.

Thanks everyone.

If you do a google search for JCV file and your unit model you may come across the larger one posted somewhere.

It has to be the version number that matches whatever map version you are using.

Just a note to the nuvi users out there. The zumo 660 & 665 motorcycle GPSs still use this large full screen JCV file and are current products. I'm not sure about the other zumo models. The zumo 665 is the only top of the line XM radio/traffic/weather unit and is only a little over 1 year old (I think). I hope they keep supporting it for a while longer. Otherwise they will have a bunch of furious motorcyclists.

Aha! Frank, I just looked at your profile. If your 765T is the one with North American maps and if it has lifetime map updates, the JCV file from it is just what your 1490LMT needs.

And if your 765T doesn't have lifetime maps, Amazon will sell you the Garmin lifetime update subscription--current selling for $53.90 with free S&H and order Fulfilled by Amazon:

http://www.amazon.com/Garmin-n%C3%BCMaps-Lifetime-America-Up...

and that'll let you have current maps and for now, the large JCV file for both the 765T and 1490LMT with just a little effort on your part doing the copy from 765 to computer to 1490!

PS--bear007: I'm extremely happy to hear you report that more than the 7x5 nuvi series uses the large JCV file. That minimizes the alandb-worst-case possibility mentioned in the 2013.30 thread link.

for that info Bear007. That gives me some confidence that Garmin will continue distributing the full coverage full screen JCV on future map updates ... at least for a while longer.

I, too had previously downloaded (from Garmin) the large JCV file for 2013.20 for my 1490LMT and life was good. Then I updated to 2013.30 and found that the large (old) JCV file had been deleted and the new small JCV file installed. No problem, that's what happened before.
But this time, as we all know, Garmin has not released the large JCV file to anyone except those who ORIGINALLY got the large file on their units. My emails and calls to Garmin support have resulted, in Customer Support jargon, to "Buzz Off, we don't care".
So it looks like the handwriting is on the wall and unless future map updates contain the large JCV files that someone makes available to us peons, we are relagated to buying a newer unit, living with the smaller JCV file, or not updating the maps until we can't stand it anymore.

bear007, Thanks for your input. What is the file size on your zumo 665 for the large JCV file? btw, nice looking Harley.

The file is the same as the nuvis, D3060080A.JCV @ 793,138,402 bytes.

The zumos are very similar to the nuvis, just built more durable, waterproof and come with dual mounts for the car and motorcycle.

Has anyone had any luck getting the large file to work on the economy nuvi 30, 40, 50 series? I have a 40 and have tried putting the large JCV file in every SD card directory I have found notes on, but can't get the full screen display. The default is a split-screen 118,442 KB file.

I have an 8Gb card and my POI files and way points are also there. Every time I turn the unit on it asks if I want to load them from the card to the main memory.

Any help would be appreciated.

Thanks

I don't have a nuvi 30-50 but this is how it works on other nuvi models:

Find the jcv file in the nuvi right now. What directory is it in? Remember this. Either move the file off the nuvi or rename it to something like DxxxxxxxA.JCV.Disabled (where you've added the ".Disabled" to the end of your renamed file.

Now on the SD card, put the large JCV file in a folder with the same structure as seen in the nuvi.

It may well be that the nuvi 30-50 series puts the JCV folder and file in the nuvi's .system folder. If you don't see a jcv folder or file and don't see a .system folder on your nuvi, report back and we'll point out how to show it.

If, on the other hand, you installed your latest map update to the SD card:

https://support.garmin.com/support/searchSupport/case.faces?...

then look for the JCV file and folder on the SD card instead of internal to the nuvi. If you see no .img map file and no .jcv folder and file on the SD card, report back and we'll offer assistance in being able to see these files. Also, if you need this help, tell us if you're using a PC or Mac.

Having said all this, know that most folks with a split-screen JV prefer to keep the split screen JV over the full screen one. If you fall into the majority, make sure you don't delete the default split screen file that came with your current map update so you can revert to the split screen option.

The latest map is in the main memory. The original JCV file is in the JCV sub-folder in the hidden ".System" folder.

I made a copy of the hidden ".System" folder on the SD card. Then I deleted all but the JCV folder in the SD card ".System" folder. In this JCV folder I copied the large JCV file. In the main memory .Sytem/JCV/ sub-folder I added ".disabled" to the file name of the original JCV file.

I did a hard reset and tried simulations that had shown junction views before and nothing came up. Then I made a Garmin/JCV/ sub-folder on the SD card and copied the large file there. Again after a hard reset the simulations did not show any junction views. I restored the original views by removing the ".disabled" from the file name in the main memory.

I'm beginning to think that this might be a lost cause, but if I missed something please let me know what it might be.

post removed ...reread earlier posts and my comment was not relevant.

Yes, on the SD card, the jcv file goes into the /Garmin/jcv folder.

Is it possible you're using the wrong JCV file. For the current 2013.30 map, you need the large D3060080A.JCV file. Using the D3060070A.JCV file works only with the previous 2013.20 map.

If this is the issue, you can find the new large JCV file here:

https://www.dropbox.com/sh/mka71p3saa16il6/qqiYV2tIxJ

as described by rame1012 on page three of:

http://www.poi-factory.com/node/38056?page=2

If so, hurry, as dropbox frequently suspends access to this download due to too much activity. I just checked and it is available right now as I type this. If unavailable, spokeybob may be able to help as he descibes on page 4 of the thread.

One last test if you want to look further into this: You could copy your current small jcv file from the nuvi to the /Garmin/jcv folder on your SD card and again .disable the internal jcv file. If you see JVs with this setup, then your problem is with the large jcv file itself; if you don't see the JVs this way, then there's an issue with the SD card or its folder structure.

Don't give up yet. Good luck.

I ran this test and got JVs with my small jcv file. I was able to download the large file, D3060080A.JCV. When I put the large file on the SD card where my small file was and then removed the small file I did not get any JVs. So my SD card and file structure checkout as the small file is working from the card with the internal memory small file disabled.

Thanks for suggesting this test. I had not thought of verifying things this way.

It's entirely possible that the 30, 40, and 50 do not have the code within their firmwares to properly handle the full-screen JCV file.

Posted in a new thread, before I saw this one:

FWIW, I took the plunge and updated my 2460 North American map from 2013.10 to 2013.30 (I know .40 is due out in a month or so, but that's not irrelevant). I used they MapUpdater at myGarmin, not the Lifetime Updater, and I unchecked the option at the end re Lifetime Updater.

Before the update, the JCV file was 460,009 kb. After the update it is 459,424 kb.

Both versions were/are the half screen JCV version. At first I preferred the full screen version, but I grew to like being able to see the map and JCV at the same time. My main complaint was with the limited locations for which JCV would pop up on my 1490. After switching to the 2460 I love the larger number of JCV'd locations.

Fyi, fwiw.

I did the same thing, but it took me about three map versions before I decided to go back to the split-screen instead of the full-screen junction view. Went to Dallas, Texas over the weekend, the split screen was a big help.

I switched from an 855 to a 3790LMT about a year ago. In the early days I gave pretty serious consideration to running in portrait mode, as I valued seeing extra pixels ahead more than I valued seeing extra pixels to the side. But with four data fields selected, the portrait mode split screen junction view does not show enough map, nor does it show the right portion of the map, to be very useful.

However in landscape view I like the split screen arrangement quite well, and don't miss the ability to download the exclusively full-screen version.

And, unlike the 855, for the 3790LMT the standard supplied JV files seems to cover all the junctions for which JV data is available in the large file, so far as I can tell.