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3790t fix for slow route calculation.

 

I was playing around trying to figure which software I like best (not as buggy) and found something interesting. Each time I downgraded to a different software and selecting a route. The route would take one or two minutes to calculate (very slow). The fix around it is to disable “my trends” and then re-enable it. When doing so your asked to delete your trends history and by doing so your route calculations seem to be on the fly (dam fast). It’s just something I came across and thought I’d share.

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nüvi 3790t & nüvi 3590LMT "always backup your files"

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Try a hard reset after any FW change, or map update. That's what seems to make the real difference.

It's what many here do.

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nüvi 3790T | nüvi 775T | Those who make peaceful revolution impossible, will make violent revolution inevitable ~ JFK

I always do a hard reset

I always do a hard reset after an upgrade or downgrade but that never fixed the slow route calculations. What I wrote up was a fix for me that others can try if they share the same symptom.

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nüvi 3790t & nüvi 3590LMT "always backup your files"

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Well then, thanks for that tip!

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nüvi 3790T | nüvi 775T | Those who make peaceful revolution impossible, will make violent revolution inevitable ~ JFK

Something is missing here, I

Something is missing here, I have a 3760 and trends is working and I get a route in about 5 seconds unless I'm going from two big areas like inner city Baltimore and inner city DC. Then it can take 20-30 seconds.

Where I have a problem, and have always have with different nuvis, is that when I'm on a route and showing a traffic screen it fails...nothing...run out of RAM etc.

VicMatson

Sounds like a hard reset might clear your problem. Have you tried one?

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nüvi 3790t & nüvi 3590LMT "always backup your files"

Thanks for sharing that

Thanks for sharing that information. I'll keep in mind if I come accross any lagging in my calculation time for my 3790.

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Just your average elder livin' the dream.

Yea, several, a few times on

Yea, several, a few times on my own and one with Garmin customer support. It's not just me, I know a few others that have the same one, couriers and all. Please remember I mentioned routes with many turns. I'm talking about 15 or more, with less it works fine.

I think these PNDs are minimum deals as far as components,kind of why I wish Garmin would make an Android application.

slow calculation and trends

I just returned today from Philadelphia to central Virginia through Baltimore and DC, and my Nuvi 2360 took to constant recalculations during the trip so much that it became unusable. A recalculation would start for no apparent reason, take 10-15 minutes or more to get to 99%, freeze there, finally finish and show me the route for a second or so, then start recalculating again. I finally turned it off, but then tried again later because of the usefulness of the traffic reports even without a working route (plus my wife was driving and I was getting bored!). I finally turned off trafficTrends and myTrends, after which it worked well (I did not delete the database). My theory is that these complex metropolitan areas along with active trends databases just becomes too much for the Nuvi, and results in program thrashing (an old IT term where if a processor has too much to do it ends up doing nothing at all). I haven't reset it yet, although I did after the last map update back in February. Any comments? Thanks, DaveD

slow calculation and trends

dldpjd wrote:

I finally turned off trafficTrends and myTrends, after which it worked well (I did not delete the database). My theory is that these complex metropolitan areas along with active trends databases just becomes too much for the Nuvi, and results in program thrashing (an old IT term where if a processor has too much to do it ends up doing nothing at all). I haven't reset it yet, although I did after the last map update back in February. Any comments? Thanks, DaveD

Try clearing the log as well.

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Freedom is not the right to do what we want, but what we ought. - A. Lincoln

When

When I was finding long calculation times on the 3790 I found that turning trafficTrends off fixed the issue. Turning myTrends off had no effect on the calculation time.

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Nuvi 350, 760, 1695LM, 3790LMT, 2460LMT, 3597LMTHD and TomTom XXL540s

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