Garmin 660

 

When I update maps on my Garmin 660 I can only install
Eastern States, in past years I could install all of USA
I only have one set of maps on my 660 and it over writes
it when I do a map update.

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I doubt this

Gary A wrote:

The first thing I have to do is rerun GE and install to computer only. Hopefully, that will remove (delete) the Southern US & Mexico map currently installed on the 660.

I don't think that will delete the partial map on the 660. But deleting the map on the 660 should be quite easy. Look for filenames that start gmapprom and delete them. There should be a gmapprom.img, gmapprom.unl, and maybe a gmapprom.gma. There could be a gmapprom.sum and these .sum files can also be deleted.

As always, make a backup of your 660 to a computer or some other device or media before tinkering with files on the device.

I don't have a 660 so it'd be nice for someone to confirm the filenames to delete before you proceed.

187 segments

Gary A wrote:
alandb wrote:

If you use the region selection shortcuts given by sussamb, you should be able to select 2 separate and non overlapping segments fairly quickly.

Note that once both map segments are installed on your 660, they will work together seamlessly on your 660, just like you had the full map in a single file.

I must be mis-understanding the "2 separate and non overlapping segments." The light bulb just hasn't come on yet. idea

Your earlier tinypic image showed that a full City Navigator North America contains 187 segments. If you follow the earlier alandb method and use MapInstall and the full map on your computer to create two map files, one file for the 660 and the other for the SD card, just create the two maps by selecting about half of the segments in one and the other half in the other. Make sure that the two map files contain all 187 segments and that no segment appears in both files; and for a 660, be sure that the filesize of each map is less than 2GB. Using MapInstall to install a map to the 660 will not delete any older map so be sure to delete any gmapprom or gmapsupp file on the 660 before using MapInstall.

Has the light bulb lit now? wink

Light Bulb On Dim

I figured out there is no way to use GE to remove the currently installed maps. So I tried something (before these most recent posts).

I used the GE map as a starting reference for what is already installed. Then, in MapInstall, I manually selected the adjoining regions to get me the lower 48 states. It wasn't too difficult until I got to around Virginia where the regions got pretty small and crowded.

It's installing right now which of course is pretty slow with the USB 1.0 speed.

Screen shot - http://i65.tinypic.com/3589mpf.jpg

Will there be a problem if I ended up duplicating regions?

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Tampa, FL - Garmin nüvi 660 (Software Ver 4.90), 2021.20 CN NA NT maps | Magellan Meridian Gold

SD

Gary A wrote:

I figured out there is no way to use GE to remove the currently installed maps. So I tried something (before these most recent posts).

I used the GE map as a starting reference for what is already installed. Then, in MapInstall, I manually selected the adjoining regions to get me the lower 48 states. It wasn't too difficult until I got to around Virginia where the regions got pretty small and crowded.

It's installing right now which of course is pretty slow with the USB 1.0 speed.

Screen shot - http://i65.tinypic.com/3589mpf.jpg

Will there be a problem if I ended up duplicating regions?

Just to be sure...your current run of MapInstall is installing the northern states to the SD card and not the 660, right?

I've never had an occurence of duplicated regions before so maybe someone with experience can answer you. It seems that I may remember that duplications could cause some issues with a WhereTo/Search but I may be remembering incorrectly.

SD

Yes, installing to the SD. It wouldn't let me install to the internal memory since there wasn't enough room. Currently 88% complete. It's like watching grass grow or paint dry. laugh out loud

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Tampa, FL - Garmin nüvi 660 (Software Ver 4.90), 2021.20 CN NA NT maps | Magellan Meridian Gold

Well ...

Duplicating regions is said to cause issues, but as I've never done it I can't verify that. Provided it's the same map I believe you'll be okay, I think the issue really occurs when you have overlapping maps that are different.

--
Where there's a will ... there's a way ... DriveSmart51LMT-S, DriveSmart50LMT-D, Nuvi 2508LMT-D, 1490LMT, 1310, Montana 650T, Etrex 20

Complete

The MapInstall completed without error. Looking at the SD with Windows Explorer, I see the new Garmin folder with the gmapsupp.img file in it along with 2 small .gma files.

I disconnected the 660 from the PC and let it boot and load the maps. Looking at the Map Info screen, it shows the 2 maps.

The Garmin developers didn't make doing this very easy. It almost looks like GE and MapInstall were written by 2 different groups and they didn't talk to each other. It would have been so much better if MapInstall first looked at the maps currently installed by GE and then offered an "everything else" button in addition to being able to select individual regions. I'm sorry. There I go being logical and customer oriented. rolleyes wink

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Tampa, FL - Garmin nüvi 660 (Software Ver 4.90), 2021.20 CN NA NT maps | Magellan Meridian Gold

Duplicate Areas

Gary A wrote:

I figured out there is no way to use GE to remove the currently installed maps. So I tried something (before these most recent posts).

I used the GE map as a starting reference for what is already installed. Then, in MapInstall, I manually selected the adjoining regions to get me the lower 48 states. It wasn't too difficult until I got to around Virginia where the regions got pretty small and crowded.

It's installing right now which of course is pretty slow with the USB 1.0 speed.

Screen shot - http://i65.tinypic.com/3589mpf.jpg

Will there be a problem if I ended up duplicating regions?

I suggest you take a screenshot of the area you you have put on the 660 that you can refer to to see what areas you selected.
Then when you copy the remaining areas to the SD card not to duplicate those states in the 660.
As far as I can recall the only problem you may have in duplicating will be when using the search function. it may confuse the 660 when a duplicate entry is found.

Since the 660 is only USB1 in can be painfully slow when copying files to either the 660 or inserting a SD card on the GPS.

You can speed up the process by using a SD card adapter or if your PC has a USB reader rather than inserting the SD card in the SD card slot on the GPS.

--
Nuvi 2460LMT 2 Units

Screen Shot

A screenshot of the area I put on the 660 is shown in my previous screen shot (GE map on the right hand side). GE calls it Southern US & Mexico. Unless you mean something else.

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Tampa, FL - Garmin nüvi 660 (Software Ver 4.90), 2021.20 CN NA NT maps | Magellan Meridian Gold

My Apologies

Gary A wrote:

A screenshot of the area I put on the 660 is shown in my previous screen shot (GE map on the right hand side). GE calls it Southern US & Mexico. Unless you mean something else.

Sorry I missed your screen shot. Your screen shot shows Northern States.

Since your in Florida, perhaps in the future you can put the map (gmapprom.img) for the East Coast only and the remainder on the SD card. This way it won't take too much space on the 660's available memory. However, you can't exceed the 2GB map limit on the SD card. Also when you're viewing the map areas it's easier to see when you zoom in to about 700 mile instead of the default 1500 mile area. Easier to see what areas you may have missed.

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Nuvi 2460LMT 2 Units

Different Approach

You may be on to something. I was thinking about deleting the current gmapprom.img and gmapsupp.img files and starting over with MapInstall. Rather than splitting it north/south, split it east/west. The region maps seem to be split better along state boundaries splitting it that way.

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Tampa, FL - Garmin nüvi 660 (Software Ver 4.90), 2021.20 CN NA NT maps | Magellan Meridian Gold

Agree.

Gary A wrote:

...
The Garmin developers didn't make doing this very easy. It almost looks like GE and MapInstall were written by 2 different groups and they didn't talk to each other. It would have been so much better if MapInstall first looked at the maps currently installed by GE and then offered an "everything else" button in addition to being able to select individual regions. I'm sorry. There I go being logical and customer oriented. rolleyes wink

I suspect the Mapsource / BaseCamp developers designed MapInstall, and the Garmin Express developers are a separate group. I have often said that Garmin seems to operate in "silo's" with very little communication or coordination between the different development groups. Sometimes you just have to scratch your head and say "Why on earth did they design it that way"

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Alan - Android Auto, DriveLuxe 51LMT-S, DriveLuxe 50LMTHD, Nuvi 3597LMTHD, Oregon 550T, Nuvi 855, Nuvi 755T, Lowrance Endura Sierra, Bosch Nyon

Silos

Great analogy! Appropriately descriptive. laugh out loud laugh out loud laugh out loud

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Tampa, FL - Garmin nüvi 660 (Software Ver 4.90), 2021.20 CN NA NT maps | Magellan Meridian Gold

2019.10

I'm trying to update my 660 and I'm having to go back and re-read my posts and responses here to re-figure out the best way to do it.

What a convoluted mess. I'm getting too old for this.

I tried the cloning method and even just selecting the lower 48, it creates a map file greater than 2GB, which the Nuvi 660 won't read.

Back to square one with MapInstall. What a horrible way to select map regions so there are no gaps or overlaps.

If I didn't use the mp3 player on our road trips, I'd retire the 660 and buy a newer model with more memory.

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Tampa, FL - Garmin nüvi 660 (Software Ver 4.90), 2021.20 CN NA NT maps | Magellan Meridian Gold

Well ...

Gary A wrote:

Back to square one with MapInstall. What a horrible way to select map regions so there are no gaps or overlaps.

Not sure how you're doing this but you can multi-select the lot simply by clicking top left and dragging to bottom right.

--
Where there's a will ... there's a way ... DriveSmart51LMT-S, DriveSmart50LMT-D, Nuvi 2508LMT-D, 1490LMT, 1310, Montana 650T, Etrex 20

Well ...

Gary A wrote:

Back to square one with MapInstall. What a horrible way to select map regions so there are no gaps or overlaps.

Not sure how you're doing this but you can multi-select the lot simply by clicking top left and dragging to bottom right.

--
Where there's a will ... there's a way ... DriveSmart51LMT-S, DriveSmart50LMT-D, Nuvi 2508LMT-D, 1490LMT, 1310, Montana 650T, Etrex 20

Cloning ...

Cloning is definitely not the right solution for the old models that have the 2 GB file size restriction. Use Express or MapUpdater to install the map to computer and the largest region that will fit in the device internal storage. Then use MapInstall to put the missing regions on SD.

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Alan - Android Auto, DriveLuxe 51LMT-S, DriveLuxe 50LMTHD, Nuvi 3597LMTHD, Oregon 550T, Nuvi 855, Nuvi 755T, Lowrance Endura Sierra, Bosch Nyon

True

alandb wrote:

Cloning is definitely not the right solution for the old models that have the 2 GB file size restriction. Use Express or MapUpdater to install the map to computer and the largest region that will fit in the device internal storage. Then use MapInstall to put the missing regions on SD.

Very true.

I wonder if you might consider a small revision to your cloning FAQ since you list the 660 as a device in the 'older nuvis' method and that was fine until the map file first exceeded 2GB.

The 660 is the most challenging older device to update with all of North America but it can be done.

Thanks.

Thanks for the suggestion Craig ... I have added a note at the beginning of the FAQ stating that cloning is not recommended on these models.

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Alan - Android Auto, DriveLuxe 51LMT-S, DriveLuxe 50LMTHD, Nuvi 3597LMTHD, Oregon 550T, Nuvi 855, Nuvi 755T, Lowrance Endura Sierra, Bosch Nyon

Think I got It

I used MapInstall to put the eastern half on the main Nuvi:

Screenshot - http://i66.tinypic.com/258xu1c.jpg

I then put the western half on the SD card:

Screenshot - http://i65.tinypic.com/n3qk1w.jpg

This is the Map Info displayed on the 660:

Screenshot - http://i68.tinypic.com/2md2t8k.jpg

The map file on both devices is named the same - gmapsupp.img

The one immediate difference I noticed when I started the Nuvi after the update is that the map no longer shows "minor" roads like the one I live on. It used to be a thin black line. It now looks like I am out in the middle of a field between major roadways.

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Tampa, FL - Garmin nüvi 660 (Software Ver 4.90), 2021.20 CN NA NT maps | Magellan Meridian Gold

Question

On second thought, I don't think I did it right. No "minor" streets are showing up. I am in the process of restoring a previous backup to try and get back to a working 660.

I have 2 questions:

1. In order to use MapInstall to install partial maps, is the gmapprom.img file the only one I need/should delete to make room on the main Nuvi 660?

2. When I use MapInstall, is it normal for the map file to be named gmapsupp.img on the main Nuvi 660? There will no longer be a file named gmapprom.img on the main Nuvi 660?

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Tampa, FL - Garmin nüvi 660 (Software Ver 4.90), 2021.20 CN NA NT maps | Magellan Meridian Gold

Try Map Updater Instead?

You might try using Garmin Map Updater instead. With Map Updater, the mapset is automatically split by selecting the install option for the East or West region on the first install. I don't have a 660 so I don't know the exact steps, but save the resulting installed three map files to SDcard, remove SDcard from GPS, and then re-install using Map Updater again--a second time--with the alternate region selected.

East region: http://i67.tinypic.com/2116uyp.jpg

West region: http://i63.tinypic.com/30sit6q.png

For CNNANT201910, the two regions are about evenly split at 1.26GiB each.

FYI.

Map Info

Gary A wrote:

On second thought, I don't think I did it right. No "minor" streets are showing up. I am in the process of restoring a previous backup to try and get back to a working 660...

Go to Tools/Setting/Map/MapInfo and see what's there and what's checked. It sounds like you're only seeing the basemap and that could be from not having a valid City Navigator or could simply be that you need to check the two City Navigator 2019.1 maps if they're in MapInfo but not checked.

Interesting

tli wrote:

You might try using Garmin Map Updater instead. With Map Updater, the mapset is automatically split by selecting the install option for the East or West region on the first install. I don't have a 660 so I don't know the exact steps, but save the resulting installed three map files to SDcard, remove SDcard from GPS, and then re-install using Map Updater again--a second time--with the alternate region selected.

East region: http://i67.tinypic.com/2116uyp.jpg

West region: http://i63.tinypic.com/30sit6q.png

For CNNANT201910, the two regions are about evenly split at 1.26GiB each.

FYI.

Your idea is interesting, but I didn't think Map Updater had the ability to install maps to an SD card. I thought it defaults to the main Nuvi internal memory, only.

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Tampa, FL - Garmin nüvi 660 (Software Ver 4.90), 2021.20 CN NA NT maps | Magellan Meridian Gold

Already Reverted

CraigW wrote:
Gary A wrote:

On second thought, I don't think I did it right. No "minor" streets are showing up. I am in the process of restoring a previous backup to try and get back to a working 660...

Go to Tools/Setting/Map/MapInfo and see what's there and what's checked. It sounds like you're only seeing the basemap and that could be from not having a valid City Navigator or could simply be that you need to check the two City Navigator 2019.1 maps if they're in MapInfo but not checked.

Because it takes so long to copy the map file, I started the copy before dinner and it just finished. It's a very old map, the last one where I could fit the lower 49 states on the internal memory.

The Map Info screen now displays:

[check mark] CN North America NT 2017.10
[1] Lower 49 States

I still don't see the local roads. Maybe my memory is faulty. I think I'll leave it alone tonight and maybe take it for a drive in the morning to see if the roads display while moving.

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Tampa, FL - Garmin nüvi 660 (Software Ver 4.90), 2021.20 CN NA NT maps | Magellan Meridian Gold

@Gary A

Have you tried a master reset?

--
Alan - Android Auto, DriveLuxe 51LMT-S, DriveLuxe 50LMTHD, Nuvi 3597LMTHD, Oregon 550T, Nuvi 855, Nuvi 755T, Lowrance Endura Sierra, Bosch Nyon

Manually Copy Installed Files from Internal Memory to SDcard

Gary A wrote:

Your idea is interesting, but I didn't think Map Updater had the ability to install maps to an SD card. I thought it defaults to the main Nuvi internal memory, only.

Even if Map Updater doesn't install onto SDcard, you can manually copy those three installed files for East/West region from internal memory to the SDcard via a PC connection, and then re-install with the alternate region selected. Using Map Updater to do this double-install is a lot easier to me than using Garmin Express. Using Map Install requires manually selecting the map tiles to build two separate non-overlapping partitions.

Reset

alandb wrote:

Have you tried a master reset?

I tried a reset (reset button on the back, under the antenna, not the Clearing User Information procedure) this morning but I still don't see local streets.

Reset instructions - http://i64.tinypic.com/23mpjjc.jpg

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Tampa, FL - Garmin nüvi 660 (Software Ver 4.90), 2021.20 CN NA NT maps | Magellan Meridian Gold

gmapprom.img?

Gary A wrote:

...

The map file on both devices is named the same - gmapsupp.img

...

Please check and see if there's a gmapprom.img file in the internal memory, inside the Garmin folder. If not, rename the gmapsupp.img in internal memory to gmapprom.img and see if the display is any different.

2017?

Gary A wrote:

The Map Info screen now displays:

[check mark] CN North America NT 2017.10
[1] Lower 49 States

I still don't see the local roads.

I was confused when I read this. Was there a typo and the 1st line is 2019.10 or is it really the two year old 2017.10? I'd try unchecking it if it's 2017 and see what happens.

Is the '[1] Lower 49' part of the checked map in the above line—or is it a separate map and if so, is it checked?

If really the 2017.10 map, it means the 2019.10 is not being seen by the nuvi, either from the nuvi or SD card. Also, 2017 should have been deleted if the nuvi received a valid 2019 map unless the 2017 map was installed in unusual way. Can you remember how you would have installed it? I finally wonder how any portion of 2019.10 would fit internally in the nuvi if 2017.10 is still present.

Filenames: I think this paragraph is correct. If installing internally to a Garmin device with GE or GMU, the map file data will be gmapprom.img and future updates will delete the older gmapprom map file when doing a map update. If installing (to nuvi or SD) via MapInstaller from the computer-based map, the map file for your 660 will be gmapsupp.img and this file will not be deleted when doing a map update and takes up so much space that a new map update will have no space internally to be installed.

If the above paragraph is correct, and if the current map file internally in the 660 is the 2017.10 map, then delete the large img file, then try reinstalling the new 2019.10, half to the nuvi and half to the SD card. Of course, do a backup first or store the about to be deleted nuvi file on a computer in case you need to restore it.

If you're still just seeing major highways and no detailed roads, you either have an unchecked map in MapInfo or you have no valid City Navigator map installed which means that all you're seeing is the basemap.

I just realized this is an

I just realized this is an older thread.... Sorry

--
A 2689LMT in both our cars that we love... and a Nuvi 660 with Lifetime Maps that we have had literally forever.... And a 2011 Ford Escape with Nav System that is totally ignored!

2GB

JanJ wrote:

If you use an SD card, you'll be able to do lower 48 states.
Copy (COPY, NOT MOVE)the /Garmin folder from your 660 onto the SD card.... Then you can put SD card in your computer, and it will be "Seen" as your 660....

Once Lower 48 State Maps are updated to this SD card, you'll have to Rename the 3files to "supp".... and then you can leave whatever maps are in the 660 there, and it will instead load maps from the SD Card...

There is a sticky post here on the exact naming...

I've been using SD card on 660 for Maps since 2013... have Never encountered an issue!!!

Just be sure that no file is greater than 2GB since the nuvi 660 can't read these large files. What file size is the Lower 48 states map file?

Old Thread

JanJ wrote:

I just realized this is an older thread.... Sorry

Yes, this is an old thread, but the recent posts describe my current problem.

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Tampa, FL - Garmin nüvi 660 (Software Ver 4.90), 2021.20 CN NA NT maps | Magellan Meridian Gold

Better Explanation

Gary A wrote:

I used MapInstall to put the eastern half on the main Nuvi:

Screenshot - http://i66.tinypic.com/258xu1c.jpg

I then put the western half on the SD card:

Screenshot - http://i65.tinypic.com/n3qk1w.jpg

This is the Map Info displayed on the 660:

Screenshot - http://i68.tinypic.com/2md2t8k.jpg

The map file on both devices is named the same - gmapsupp.img

The one immediate difference I noticed when I started the Nuvi after the update is that the map no longer shows "minor" roads like the one I live on. It used to be a thin black line. It now looks like I am out in the middle of a field between major roadways.

Let me see if I can better explain the steps I've already taken. Apparently, I've caused a lot of confusion.

1. As described above, I used MapInstall to install the 2019.10 maps in 2 parts, east (Nuvi internal memory) and west (SD card).

2. After doing that, I noticed that the 660 was only showing major highways and roads on the map. The surface streets in my subdivision, including the street my house is on, were no longer being shown.

3. I decided to restore an old backup which happened to be the 2017.10 maps (not a typo), because I knew it used to show the surface streets in my subdivision. This old map file completely fit in the Nuvi internal memory without needing to use the SD card. I deleted the 2019.10 gmapsupp.img file from the attempted MapInstall on the SD card to avoid any conflicts. This is my current Map Info screen:

Screenshot - http://i66.tinypic.com/2rpqvwj.jpg

4. Here is a screenshot of the current Nuvi internal memory Garmin folder with the old 2017.10 maps restored from my backup.

Screenshot - http://i65.tinypic.com/282ksnk.jpg

5. I just got back from a drive around my subdivision and no surface streets are displayed even with these old maps which used to display correctly.

6. Just to be sure, I even booted the Nuvi with the SD card removed. It still doesn't display the surface streets in my subdivision.

EDIT: PARTIAL SUCCESS!

I tried to avoid it, but I finally bit the bullet and did a reset of all the user data. I can now see all the local surface streets in my subdivision with the old 2017.10 maps installed.

I am now ready to try installing the 2019.10 maps again.

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Tampa, FL - Garmin nüvi 660 (Software Ver 4.90), 2021.20 CN NA NT maps | Magellan Meridian Gold

Map Detail

Under "Tools" (wrench on main page), select Map.

Then select "Map Detail".

Then select "Most" from the selections.

Next select "OK" and return to main menu.

Less detail allows the unit to update the screen faster, but that's not good in the suburbs as you want to see all those streets.

Every so often a map update will affect some setting(s) that you may not be aware of. Two that have happened to me were "Toll Avoidance" and "Always Reroute" (Traffic Avoidance). Your Garmin may drive you bonkers until you figure out what happened and you change the setting back to your preference.

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Metricman DriveSmart 76 Williamsburg, VA

Surface Streets

metricman wrote:

Under "Tools" (wrench on main page), select Map.

Then select "Map Detail".

Then select "Most" from the selections.

Next select "OK" and return to main menu.

Less detail allows the unit to update the screen faster, but that's not good in the suburbs as you want to see all those streets.

Every so often a map update will affect some setting(s) that you may not be aware of. Two that have happened to me were "Toll Avoidance" and "Always Reroute" (Traffic Avoidance). Your Garmin may drive you bonkers until you figure out what happened and you change the setting back to your preference.

Maybe you missed my "EDIT: PARTIAL SUCCESS!" at the bottom of my long post, but I got the surface streets to appear by resetting the user data.

Right now, I am in the process of installing the 2019.10 East region maps to the main Nuvi 660 internal memory.

--
Tampa, FL - Garmin nüvi 660 (Software Ver 4.90), 2021.20 CN NA NT maps | Magellan Meridian Gold

Response

Gary A wrote:

Maybe you missed my "EDIT: PARTIAL SUCCESS!" at the bottom of my long post, but I got the surface streets to appear by resetting the user data.

Right now, I am in the process of installing the 2019.10 East region maps to the main Nuvi 660 internal memory.

I didn't miss your post as that's what prompted me to make my post. I was hoping that if it happened again, you would not need to do a "Reset" next time.

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Metricman DriveSmart 76 Williamsburg, VA

User Data

metricman wrote:
Gary A wrote:

Maybe you missed my "EDIT: PARTIAL SUCCESS!" at the bottom of my long post, but I got the surface streets to appear by resetting the user data.

Right now, I am in the process of installing the 2019.10 East region maps to the main Nuvi 660 internal memory.

I didn't miss your post as that's what prompted me to make my post. I was hoping that if it happened again, you would not need to do a "Reset" next time.

Got ya. Thanks! grin

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Tampa, FL - Garmin nüvi 660 (Software Ver 4.90), 2021.20 CN NA NT maps | Magellan Meridian Gold

2019.10 East Maps Installed - Question About West

I successfully used Map Updater to install the 2019.10 East maps on the Nuvi 660 internal memory.

Should I be able to now install the 2019.10 West maps on the SD card, using some of the steps from the cloning method, like:

1. Create folder Garmin on the SD card. Copy the file garmindevice.xml from Garmin folder of your device into the Garmin folder of the SD card.

2. When Map Updater is finished, you should have 3 map files in the Garmin folder of the SD card: gmapprom.img, gmapprom.gma and gmapprom.unl. Rename these files to gmapsupp.img, gmapsupp.gma and gmapsupp.unl.

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Tampa, FL - Garmin nüvi 660 (Software Ver 4.90), 2021.20 CN NA NT maps | Magellan Meridian Gold

You've Got it!

Gary, the steps you've stated should work... hope you gave a try. Just a note, which I think you're aware of, for the clone to work, you'll need to have the SDcard in a SDcard reader for the second install with Map Updater--not in the 660.

"Should" work.

I agree that the steps you outlined should work, and there is no risk in trying that method because your working device is isolated from the cloning update until you are finished and put the SD card in the unit. If it causes a problem you can just remove the card to get back to where you were.

Probably the recommended method is to use MapInstall to install the missing regions to the SD card, but either method should work.

--
Alan - Android Auto, DriveLuxe 51LMT-S, DriveLuxe 50LMTHD, Nuvi 3597LMTHD, Oregon 550T, Nuvi 855, Nuvi 755T, Lowrance Endura Sierra, Bosch Nyon

YES! SUCCESS!

That procedure worked!

Using MapUpdater is a simple 2-step process being able to select the East & West regions. Much easier than using MapInstall and having to click on or click-and-drag many individual smaller map regions. It avoids the risk of missing or duplicating map regions.

I tested by searching for a few addresses and locations in the West region. It found every one I tried.

Now all I have to do is remember how I did it when the next map update is released. laugh out loud

Thanks for your patience and help!

My Nuvi 660 lives on.

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Tampa, FL - Garmin nüvi 660 (Software Ver 4.90), 2021.20 CN NA NT maps | Magellan Meridian Gold

Well done!

Gary A wrote:

That procedure worked!...

Well done, sir.

Backup

Now that I have it back working with current maps and the latest POIs loaded, I am doing a backup of both the main Nuvi and the SD card.

Can never have too many backups. wink

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Tampa, FL - Garmin nüvi 660 (Software Ver 4.90), 2021.20 CN NA NT maps | Magellan Meridian Gold

If Mexico is Needed, Then Use MapInstall...

Gary, way to go, cool! smile

If one wants to install the entire CNNANT201910 map set (all 188 map tiles, including Mexico), by splitting between internal memory and SDcard, then MapInstall is likely the only way to do so for older GPS units with memory limitations. Note that using MapUpdater to install the East and West regions only provides US and Canada coverage--Mexico is not included, FYI.

Mexico

I did notice that, but I don't see traveling to Mexico in my future.

However, someone else may find this useful.

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Tampa, FL - Garmin nüvi 660 (Software Ver 4.90), 2021.20 CN NA NT maps | Magellan Meridian Gold

That was my first GPS and

That was my first GPS and one of he best I owned

--
NickJr Nuvi 3597LMT

660

I still use my 660 when I travel and haven't had a problem yet.

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johnm405 660 & MSS&T
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