2012.20 JCV file size confusion

Email sent. Very polite one. I hope they fix this problem because my GPS is less than a year old.

I installed the 2012.20 maps on my 780 & my 1490 on the SD card with no problems. I have lifetime maps on both so I want to use the card rather than the Garmin base storage for the maps.

It works fine. I haven't yet tried the JVC file on the cards, but I have read others comments where it works just fine.

Without being persistent, this file would have never seen the light of day. rame1012, we salute you.

Yep. Put the file in X:\Garmin\JCV and you're all set.

On a totally off-topic subject, I'm curious about your avatar. What is it?

So just to be super clear here ... The main map (gmapprom.img) can reside on the Garmin drive and this JCV file can reside by itself on the SDHC/SD/microSDHC card under X:\Garmin\JCV folder right ?

Also make sure you delete the original JCV folder "JCV" from the Garmin drive.

Thank you rame1012 for posting this file and also to Garmin who finally listened to us!

I never had to delete the JCV folder from the Garmin drive, but that may be because I never had it to begin with. Other than that, you are absolutely correct. The map is on the internal drive, while the JCV file is on the MicroSD.

Just finish downloading the JCV file into my 855. All is working just fine so far. No distoration, very clear view. All I can say is those lying sob at garmin just want our money.

Let's just hope for the future that this won't happen again and we will automatically get the full junction view file when we download the new map update for the first time. But if not, I now have the VP's phone number stored in my phone, plus a direct e-mail address for the head of the Garmin automotive help desk. So if need be, I can get the full junction view file again. I'm also very happy to hear that it's working well with an SD card (like it should have been all along). That's a good thing to note for future map updates.

We have decided to provide a larger file for the 7x5 units. Please use the link below to download the JCV file.

http://download.garmin.com/support/2012_20/NA/JV/D3060030A.j...

I wanted to let you know. Please let me know if you have any questions.

Best regards,

Justin Matthews

With 752MB file there appears to be a view on every turnoff of I35 headed north out of Fort Worth. I tried several.

I'm happy that there are so many folks that don't like junction views. That means they won't get in the way when I want to download it.

Thanks rame1012!

The file works fine on the SD card of my 885T . The directory you listed is the correct place. I also removed everything from the JCV folder on the internal memory.

Thanks,

I had a spare 8GB Sandisk card so I formatted it, created the directories, copied my Arizona Topo map to the card, then copied the new humongous new JCV file to the card as well. I did delete the identical JCV file from the nuvi's internal but left the empty \garmin\jcv\ directory to see what would happen.

After a safe disconnect, nuvi battery removal for a true 855 reboot, installation of the SD card with AZ Topo and 2012.20 752MB JCV file, I restored the battery and let it power up.

Huzzah, I still have the 2012.20 City Navigator (internal) with the SD-carded 752MB JCV file that works flawlessly in simulated routes--and I still have my Arizona topo as well.

So now I've got a big SD card with the two items I want--and I continue to have about 1GB of free space on the nuvi internal which should avoid any limited space issues in three months when the next map update arrives.

So at least for the 855, jakas, it's not essential to remove the jcv directory on the nuvi's internal space when running jcv files from an SD. You are correct in this, S..._A....

PS--I do think that in three months, I'll let someone else be the first to see what jcv file size arrives for the nuvi 8x5 series with 2012.30.

It's the Hopi kana'a katsina (kachina), the resident katsina of Sunset Crater Volcano just NE of Flagstaff AZ and whose eruption would have been viewed from residents of the Hopi Mesas when it first erupted. I had young Justin Lomatewama of Hotevilla, Third Mesa create the katsina for me in 2003. He's the son of artist, storeyteller, poet, writer Ramson Lomatewama:

http://www.sacred-texts.com/nam/hopi/toah/toah20.htm

See also:

http://www.poi-factory.com/node/14296

I have the 2012.1 on my 1490t. Should I update to 2012.2 before I put the new JCV on the SD card?

You can't mix versions between map files and JCV files. In other words, the 2012.20 JCV file will not work with the 2012.10 map. You should update maps, then back up, then delete the installed JCV file from internal memory and put the new large JCV file on the SD card.

Woohoo! Thanks so much. Finally...

Can I also delete SUM file in 755T JCV folder.

Yes.

But you also do keep a backup of the original nuvi before doing any deletions as a matter of principle, right?

Right!
Yes I did back up my old 51MB JCV file.when next map update come out.I will replace with 51MB befour I update 2012.30

Just a thought, since the new JCV files is larger than the one that I have on my 3790LMT. What would happen if I copy the larger file to the JCV, would I get a full screen of JV or what. Just wondering.

I have a 2350LMT using the 37xx JCV file (446 MB)and everything works great and has the split screen. I installed the D306003A.JCV (752 MB) file and now the split screen no longer appears, just the junction view appears for a few moments and then back to the map. I compared junction view images from a few routes, the same number of junction views appear between the 2 JCV files on my test routes. I reverted back to the 37xx JCV file (446 MB), I perfer to look at the split screen, showing map and the junction view image at the same time.

Since it seems that some units give a split screen with the map and the JCV, I am wondering how soon the split screen appears and when it goes back to just the map.

When the GPS is in split screen, does the "lane assist" arrow still appear on the map side?

On units that do not support the split screen, when does the JCV appear and how long does it remain before the GPS reverts to just the map?

Those of you who have been doing simulations might be able to answer these questions.

On my 1490LMT, JV comes up full screen and lane assist does not show during this time. Using a simulated route, the junction view came up at .7 miles and went off at .5 miles before the junction. Total time JV was on screen was 10 seconds.

Edit: This was tested using the 752MB JCV File.

That really blows. There should compensation for that!!!

You can always touch the back arrow to turn it off if you think it is on too long.

On my 3760LMT, using the 152 MB JCV file that came with the last update, JCV comes up split screen, with map/LA on left and JCV on right. In portrait, map/LA is on top. Using a simulated route, and travelling at 70mph, JCV appears at .8 miles and stays on until exit or until junction is passed.

On my 3760, using the 752 MB file, JCV comes up full screen in landscape and portrait. Map/LA do not show during this time. Using a simulated route, and travelling at 70mph, the junction view came up at .8 miles and went off at .6 miles before the junction. Total time JV was on screen was approximately 10 seconds.

He is not well informed as I have already loaded that larger JCV file on my 885 and it works.

This e-mail wasn't sent by the VP, but by the head of the Garmin help desk group. But I received a phone call from the one of the VP's (I think there are at least two or three) stating that he had given the ok to the head of the help desk to send me this larger Junction View file and to check my e-mail for it. So it's the head of the help desk that told me this, and honestly, the only reason he said in the email that it would only work with the 7x5 series is so that I wouldn't make it available for other units (and his plan obviously didn't work). But the VP told me on the phone that this file contained the entirety of Garmin's Junction View database, and that this is about as large as the file's gonna get for now. And he was certainly right about that. Every single interstate exit is now covered as far as I've seen no matter where you are. Such a drastic improvement over where we were just a couple days ago.

rame1012, I do thank you for sharing the file. But because of what you said above, I wonder what is going to happen for 2012.30 and future versions. Is Garmin going to be willing to give you or anyone else a full JCV file, or will they retaliate because you shared it? It will be a real disappointment to many users who have this now if they have to make a choice between updating maps or giving up the rich Junction View file.

It is too bad the JCV does not work across map versions. Maybe someone will reverse engineer it and figure out how to attach it to a different map version. (Turboccc, you listening? .... just kidding of course. We appreciate everything you have contributed to this community and don't expect more!)

I'm in the middle of pretty much the same experience with my Dezl 560LMT.

I don't think Garmin has enough sense to read this forum, so they won't know that I posted the Junction View file for you guys. And I think what is going to happen is Garmin is going to give at least the 7X5 series the full Junction view file in future map updates, and if they give it only to the 7x5 series (like it says in the email), then I could easily post it somewhere for people who want it. I'm not worried. I now have one of the VP's phone numbers, and the head of Garmin's help desk's direct e-mail, so if there's ever a problem in the future, I can always go straight to the big guys about it.

Garmin has burned its trust with many over JCVs and other issues. This VP took a giant step toward earning some of it back, but the next map/JCV update may be critical. The phone # and e-mail you have may be very important.

Add my "Thank You!" to the chorus of those who appreciate your efforts in this matter.

So I just tried to upload my Junction View file to a microSD card, and I'm having some trouble. Here is what I did:
1. Formatted the microSD card
2. Plugged in my nuvi
3. Created a folder called "Garmin" on my mircoSD card
4. Then I created a folder called JCV within the Garmin folder on my mircoSD card
5. I then took the contents of the JCV folder on the Garmin itself and copied them to the JCV folder on the mircoSd card.
6. Backed up the JCV folder and it's contents on my computer and then deleted junction view folder from the internal memory of the nuvi itself.
6. Turned off my nuvi
7. Put the SD card in the nuvi

I then tried to simulate a route and did not get any Junction Views. I backed up the JCV file on my computer just in case. Could someone please tell me what I did wrong and why I can't see the Junction Views with them being the SD card

I just tested this on the 13xx and 14xx series and it works flawlessly. Thanks, I'm really impressed. All of the Junction Views are there and are photorealistic. Just hope we can get this file for the 2012.30, 2012.40, etc. else this will just last a couple of months.

@rame1012 ... Did you format the SD card as FAT32?

I just tested this on the 13xx and 14xx series and it works flawlessly. Thanks, I'm really impressed. All of the Junction Views are there and are photorealistic. Just hope we can get this file for the 2012.30, 2012.40, etc. else this will just last a couple of months.

Well, they know it now as someone posted it in forums.garmin.com: https://forums.garmin.com/showpost.php?p=103430&postcount=29

Yes, I did. Was I supposed to format it to something else?

I was just checking to make sure you didn't use NTFS. Is this for your 7x5 or a different nuvi? I ask because you said micro SD and the 7x5 uses SD. Of course you may be using a micro SD with adapter.

I'm talking about my 765t. And I'm using a MircosD card with the adapter.

If it was a 8x5 I was going to suggest a power reset by removing/replacing the battery. But that procedure doesn't apply to the 7x5.

Wish I could help. I haven't tried installing the JCV on the SD on my 755. I put it on the internal drive. I will try to do some experimenting later tonight and let you know if I figure something out.

sorry

I didn't delete the JCV folder from the internal Garmin memory, just the contents. I created the \Garmin\JCV on the flash memory and moved the new file there, worked perfect for me with an old 1G card. When you hook the Nuvi to your computer, do you see two drives? (The NUVI internal and the flash memory show up as 2 drives).

My dyslexia created a JVC folder that didn't work... Great audio products, but a lousy folder to put your Junction View file in

Larry

Like larry_larry, I was able to get this to work on my 755T on the first try. I did remove the \JCV folder (by renaming) from the internal drive and also renamed the .JCV file inside it. I also made sure that the Garmin folder and Garmin\JCV folder (including capitalization) were named exactly the same on the SD as they were on the internal drive. You wouldn't think that capitalization in the folder names would make a difference, but I checked it just in case.

I did do a soft reset of the nuvi (while the unit is on, move the power switch to the lock position, then move and hold it all the way to the left for about 20 seconds until the unit switches off.) I then restarted it and checked a test route to make sure the Junction Views were working.

I don't know if any of these things will help you. It sounds like you did everything right. Hope you get it to work.

A hard reset did it! Can't believe I didn't think of that. Thanks!

If you have, or know someone who has the 2012 DVD you can copy the full JCV from there. The DVD is 2012.1

I downloaded the file and installed as recommended in my 765t LMT. Thanks for the tip. Works perfectly.

I am going to download the 752MB JCV file thanks to rame1012. My 765LMT still has about 1.44G, but I want to download it to a SD card but don't know how, I need help.

Instructions and discussion can be found here:

http://www.poi-factory.com/node/34056

Welcome to the POI Factory!

The 2012.1 has to use the JCV file made for it. Same as the 2012.2 map needs the proper JCV file. You can not mix and match.

Thanks a bunch for sharing the info they gave you. It's this sort of information sharing that makes this board great.

Regards

I suck at file structure but I did the 2012.2 update and put the 752MB on my SD card in my 1490t. No problems. We went down to Springfield IL this weekend to road test. WOW. It was just perfect. Most times the JCV displayed one mile away and remained for about .1 mile. I'm not sure, but I thought I noticed many more lane assists than before on state highways and city streets...
My disk never arrived with the 2012.1 JCV file.
And thanks ro rame1012. I nominate him for a COW.