re loading previous map

Just plug the GPS into your computer, GE should come up and then just follow directions to reinstall the map.

That's a new one. I have never heard of a map update losing its junction view file. Did you use Garmin Express or GarminMapUpdater? Was any part of the map update unusual; e.g., clone technique, previous partial maps, internal or SD installation, etc? My suggestion is to reinstall 2016.10. With Garmin Express and your nuvi connected, go to Map Options, then Reinstall Map. Then test it to see if JVs have returned.

To reinstall older maps: Do you have a nuvi backup of all files from a previous map update? If not, consider this a learning experience and start now:

http://www.poi-factory.com/node/30394

Note that your thought of going back to 2015.10 is four maps ago. If 2015.40 worked for you, that'd be a better choice of a previous map.

Before starting, you could try looking at the files on your nuvi to see if your current 2016.10 map update shows a jcv file. If it's there, report what you find and maybe we can suggest what to do without a full map reinstall.

One last thing. Your profile shows only a C530. I suggest updating to include your nuvi.

Good luck.

My guess is the OP had the large JCV for the 2015.4 maps and doesn't have the 2016.1 large JCV. That's why they want to retrograde.

This would only work to reinstall the 2016.10 maps that the OP already has on his Nuvi. It would not work to reinstall an old map update like the 2015.10 that the OP wants to put back on his device.

I wonder if the problem has something to do with the reported reissue of the 2016.10 map update and the reneming of the JCV file. I have to admit I never heard of this issue until I read the post by Strephon_Alkhalikoi near the bottom of this thread:

http://www.poi-factory.com/node/45102

from http://www.poi-factory.com/node/45000

The latest is Garmin Express v4.1.6.0

Perhaps the OP should try

What should I do if I am having problems downloading updates in Garmin Express?
https://support.garmin.com/support/searchSupport/case.faces?...

While we wait for @arbrey to come back online, let me suggest that we all look at our "Profile" and make sure that the information is current. It helps us be more precise if we know what device(s) have some problem.

Also - sure would be helpful sometimes to know whether the OS is windows or Mac.

Another thing to consider. I'm not sure if member Arbrey is aware of the fact that his 2557 has MTP mode so all files will not be visible. As CraigW mentioned he should check to see if the Junction View file is present but he will not see it unless he switches to Mass Storage mode.

Instructions to switch to Mass Storage Mode:
http://www.poi-factory.com/node/41416

The JCV file should be present in the .System\JCV folder. The date stamp of the JCV file should match that of the map (gmapprom.img) since older JCV files will not work on newer maps. The proper JCV file must be match the map it belongs to.

Also if you have not done so yet, it's a good idea to do a complete backup of all the Nuvi Files, without changing the MTP mode it will NOT backup all the files since some are hidden.

Ah, that could be. Since I'm one of the large majority of users who prefer the default split-screen JV on devices that offer split-screen, I often forget to think of the small minority of users with split-screen devices who want—and will go to the effort of installing—the large full-screen JCV file, since the large file is displayed only a few seconds, and features like Active Lane Guidance and BirdsEye JVs (offered on the nuvi 2557) will be lost.

I guess I was not aware that one lost features by using the large jcv. Do we know which devices are affected?

IMO, all split screen models lose function when they use the full screen JCV file. At a minimum, they lose the function of being able to view the map and junction view at the same time.

I admit that I am making the assumption that Active Lane Guidance and BirdsEye JV are part of the JCV file, or at least that the use of the large JCV file overrides an ActiveGuidance or Birdseye view.

My assumption (again) is that the loss of the extra JV types would be for all devices offering the extra types when substituting the large JCV file.

Testing this is possible but is more than I want to do. One would need a device that has split-screen/ActiveGuidance/Birdseye JVs, then install the large JCV file while disabling the default file, and finally running some live or simulated routes that include split-screen BirdsEye or Active Guidance views. Any takers? The perks of doing this is that you could prove me wrong and make me eat crow.

In my much earlier post I did not see the OP wanted to go back in history, my bad.

Changed sig to represent Windows OS

Guess I'm confusing the issues here, sorry.I took care of upgrading Garmin Express, that's OK. Lost the junction view feature with the recent map update. Was hoping to reload previous map which had the junction view. Using Nuvi 2557 running in Windows 7.

Thanks for getting back to us.

The issue we see is that the split-screen JV file that is meant for a specific map update for your nuvi 2557 should be installed with the map update. I've never heard of a map update that lost the JV feature and therefore, my thought is to reinstall the current 2016.10 map and hopefully get the JV feature back again rather than try to reinstall an earlier map, especially if you haven't saved a copy of the files needed from a previous map update.

OK took your advice and reinstalled 2016.10. Will try a route later today to see if I have the junction view. I never really found a JCV file in any of the 2557 folders when plugged into the computer. What I did notice GE reports that I have 3,11gb of memory left on it.When I originally upgraded to 2016.10 GE reported 4.11gb of memory left.Will see? Thank you for the help, will let you know how I make out

Please read my earlier post on August 4th 10.51 AM, perhaps that is why you're not seeing the Junction View file. Since you reinstalled 2016.10 there should be a Junction View file in the .System\JCV folder.

Earlier, muell9k mentioned the need to switch from MTP to MS mode and to change your Folder Options to show hidden and system files and folders. To find your jcv file in the 2557, you will need to switch to MS mode and have the correct folder options. When viewing your nuvi via a computer, if you don't see a folder named .system (dot system), then you won't see the map file, jcv file, etc. Note that it's not essential to be able to see these files as long as the nuvi is working as expected. Seeing the files is needed for backing up the nuvi and for sleuthing issues like seeing if your jcv file is present.

Good luck on finding JVs now. Remember that JVs only show when driving a route so I suggest either driving or simulating a route to a destination that will involve some interstate ramps and interchanges. Whether driving or simulating, you won't actually need to run the entire route—once the route has been created, just tap the green bar on the top of the nuvi and scroll down to a ramp or interchange, then tap that turn. Your JV will show.

On another note, having 3.11 or 4.11 GB of free storage on your nuvi sounds quite large to me although I don't have a 2557. When you updated your map, did you install all of North America?

Ok I did a simulated route and guess what I got Junction view back! As for the remaining storage GE tells me that it 59 percent full. Ran GE several times and it shows the same each time. Thanks again for all the help. When it comes to GPS you guys are the greatest!

Super!

Thanks for reporting your success. We always like to know that advice was on target.

NEVER HEARD BEFORE OF SOMEONE LOSING THEIR JVC FILES BY DOING AN UPDATE. WEIRD.

My best guess is that there was a glitch in either the download or the transfer from computer to nuvi that wasn't caught by any error-checking, and the glitch was with the jcv file.