Just picked up a NOS 3597LMT.
It responds quicker than my original in route calculation and screen refresh. Any ideas what causes the slower response? I'm assuming all 3597s have the same processor. The serial number on the new one is about 1400 higher than my original.
Debating what updates to install. Maps are necessary but are firmware updates needed? Is it better to install the maps on an SD card?
Any ideas would be appreciated.
Before updating, install a 16GB or higher SD card. Even so, Garmin Express might not use it.
There is no choice - the software update is done before the map.
On my garmin express I can list the updates and only install the ones that I want only firmware or only maps, but you can't just click install all, click on view details aand it will show you what it is going to install then pick what you want to install instead
I've always found that even selecting the update options individually, when a map update is selected GE will update any system/firmware software update prior to the map update even if you did not select it.
More'n Likely, the map updates are tied to the latest software updates, and won't work properly with older ones.
why don't you want to update the firmware?
Because you perceive a "slowness" of your older unit?
What are you seeing, in really measurable time?
Minutes, Second, 1/2 second?
A new factory fresh Garmin device hasn't learned your preferences and this could account for some of its apparent snappiness.
Once used for several weeks, especially if features like myTrend and such are active, the device learns your typical speed compared to posted speed limits, learns your routes and can offer a route and use your preferred routing, takes up storage space with tracklogs and many other things which have the potential to slow things down. You'll notice the same thing if your well-used device receives a hard reset and seems quicker after the reset.
Unless you use the cloning technique, Garmin Express will choose where a map update goes and as long as it all fits in the nuvi, the SD card won't be used. On my 3597, probably due to my installing all available Enlish language navigation voices, Garmin Express needs a SD card to install all of North America BUT it install all but the JCV file internally in the 3597 and puts the JCV file in the SD card.
I don't know what version your 3597 has but here's a summary of what past updates have done:
Although the exact manufacturing dates of your units (both old and NOS) likely can't be determined, the 3597 dates from the 2nd quarter of 2013. To compare the NOS unit with one that has been updated to the current map revision, may not be a valid comparison.
Do any of your older units use the extra memory slot?
Personally, with an SD card in hand, I would just update to the latest and greatest of everything that GE would recommend.
...install a 16GB or higher SD card...
I should have said:
At least a 16GB SD card so the entire map can fit on it.
No bigger than a 32GB SD card - source - Garmin Support:
Even the EU map is well under 8Gb so unless you plan on loading more than the map then 8Gb should be ample.
I have 8Gb cards in both of the family 3597 units. I only recall being advised during install once that GE was using the card. I've taken no special measures to discard files to save space. Maybe the unit is still pretty close to holding standard updates for North America without the card.
As far as I can tell, once it uses the SD Card, it never asks again. I see new map files on the card in my unit, in the Hidden System Files, there was no permission request.
If you do not install an SD card, is the software smart enough to prompt that there is insufficient space prior to updating or installing maps? I have a 3497 and still "luckily" have not had to add a card although it's 8GB internal memory is pretty maxed out with the later maps. I have a bunch of cards laying around but haven't thought to put one in since the updates appear to work fine.
Express will warn if there is insufficient space and give you the options open to you, generally choose a smaller map region or add a sd card.
Had a chance to directly compare on a couple activities.
Redraw map when zooming out
Original 3597 3-4 seconds
Original - 9 to 10 seconds on a 257 mi trip, provided 2 possible routes with no highways and shortest preferred.
Virgin less than 2 seconds, provided 3 possible routes, same route settings.
Maps CN NA 2020.3 full
Maps CN NA 2014.1 full
Does that information answer your question?
GE shows it will update Firmware if I install CN NA 2021.1 on Virgin.
Tried WebUpdater Ver. 2.5.7 in a virtual Win XP SP3 environment and it will attempt to just install CN NA 2021.1 but some of the change logs for the 3597 firmware make reference to "Added improvements for handling larger map files."
Looks like I'm stuck between a rock and a hard place.
That does seem like a sizable difference.
I agree that you are between a rock and a hard place. But what choice do you have if you want to remain current?
It could be that there is a problem with the older unit and not the firmware as you claim. I would be willing to bet it is NOT the firmware update.
I would just update the new one and move on.
I have a 3597 that was a refurb unit, but haven't had a chance to unpack it yet
I keep hearing that the 3597 was one of the best units Garmin put out.
Still won't give up my 3497. Wish they still had 4.3" navigators.
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