Disappointed with my new Nuvi 760

I have a 750 and have noticed the lag in the map. I have not experienced any of the other problems you mentioned.

But, thanks for the info on removing the card to get rid of the lag. I will try that since I don't use the MP3 player very often.

I've used a PNY 256mb and now a 2gb Sandisk card and have never even had a lag problem. Maybe just an incompatability between the Nuvi and that brand of card??

You gave a very good description of the problem.

From that, it would appear to me that you need a different SD card. They are relatively cheap these days; on sale, downright cheap.

Is there some reason you have not tried a new card? Sandisk seems to work well in most units and is reasonably priced.

I have the same unit and have not experienced any of these issues. I have an SD card in the unit. Only complaint i have is that satellite acquisition time particularily if there are obstructions is longer than other units I have tried.

Not sure what to tell you. I have had greater experience calling Garmin Support than emailing. They have always been great.

800-800-1020

Can you exchange it from where you purchased it? I have had the 760 since Christmas and have enjoyed it

The symptoms you describe may indicated that you have both the nuvi’s memory and SD card loaded to near capacity.

I recommended that you try recalibrating the display, and eliminate some of the custom files or mp3 files you are trying to work with.

gwr50

I have the same problem with the sd card. I've tried 2 different cards, one being 256 mb and the other a 2gb card. Makes no difference to the lag. Contacted Garmin a week ago and they are going to get back to me about the need for including this problem in a future firmware update. Fingers crossed.

sorry to here that!

I have a 760 (upgraded from a 660). I don't have any of the problems you mentioned, and I do have a SD card inserted with topo maps.

I have not tried the mp3 player.

The only thing I have noticed on my is the occasional stuttering voice while navigating, but nothing else.

I had a similar problem before I did the following:
1. Updated Map Software to 2009
2. Deleted some unnecessary (and large) POI files.
3. Put in a 2 GB SD card and only put on it what I needed (currently 1 GB)

Not sure what fixed it but suspect it all contributed.

I had no issues with 760....great GPS.

Thanks for all your comments.
The 1G SD card I was using was only half full and I was not using any additional device memory. All custom POI's, MP3's, and Pics were all on the card.
It seems there are several others that have experienced similar problems.

I went out today and purchased a pny 4G
class 4 SD card.
I'll leave another post after I try it for awhile.

I hope it solves the problem, otherwise I will be exchanging my 760 for another.

Did you actually check to see if that card is approved for use with your model......or if it meets the specs. suggested?

I don't know for sure about the 760 but some can't use anything over 2G.

I have seen a few comments from users who reported slowdowns with memory cards. Not sure if their cards are too slow or if the files are not organized well. One thing that can be problematic is putting all the files in a single directory or in the root of the card.

My 4GB card has over 3GB of MP3's on it, each album in a separate directory, all inside an MP3 directory. I cannot see any performance difference with the card inserted or not.

Hopefully your new card works. I haven't tried using a card with mine. Maybe I should.

I can tell you that the same sd card worked flawlessly in my nuvi 650. The first one I tried was a 2 gig panasonic class 6 and now using the 256 mb sandisk. They both slow my unit a great deal. The voice commands seem to be well in advance of the upcoming turn so the unit does warn you through tts but the vehicle seems to reach the turn or goes through an intersection before gps does. But only with sd card loaded. I believe it's fairly obvious that some units are affected by this issue

I have been using a 2gig Sandisk Ultra II in my 760 just over 1 month now with mp3's without any problems. The only complaint is the battery life.

I know you said you checked your MP3 Files and found none corrupted.

An inserting the same SD card with the MP3 files into a Nuvi200 wont check the problem because the 200 does not have a MP3 Plater. And thusly does not even look at or load the MP3 files. So doing so is not really testing the SD card.

But how did you check them out. Play them on your PC?

I had a problem with 1 mp3 file on my 750 and it caused the same problem as yours.
My MP3 files all played on my PC so I could not figure out what was wrong. So I decided to eliminate the MP3 trouble on the card itself.

I had abour 500 mp3 files on the card. I erased the last 250 and then re-inserted the card into the Nuvi and it still failed. I then removed the 1st 250 and replaced them with the 2nd 250 and tried again this time it worked fine. I then divided the 1st 250 int0 1/2 and put the 1st 125 mp3 files back on the card and tested. It Failed. So now I know that the bad mp3 file is in those last set of 125 I loaded.

All you have to do is keep dividing the bad half in half and test. It does not take long to narrow it down to 1 file.

Each time you divide say 500 files by half you have a 50/50 chance of finding the bad half the 1st time.

So dividing 500 by half = 250/250 -125/125 - 62/63 - 31/31 - 15/15 - 7/7 - 3/4 - 2/2 - 1/1. The max number of test could be 18 and the min would be 9, so somewhere between 9 and 18 tests is all it takes for you to find the bad file out of 500 files. A 1000 files would be 10 to 20 tests. So it is not really that bad.

I still say your problem is not with the sd card but with the MP3 Files.

As you divide your MP3 files into halves keep track of the files that were tested. There may be another bad file in those halves that were not tested on the first go-around.(You found a failure in the 1st half so you didn't test the second half..

If you get through and you think you have found the bad file and eliminated it. Load all back in and try again. hopefully it passes. If it fails again you may find that you had more than on bad file. Start testing the halves that were not tested before.

It sound hard but it is not, it is only a little time consuming.

Luck on finding the trouble.

Hmmm...I currently have an old SD card I've been using until my 2 Kingson 2GB cards are shipped. The card I'm using now is a 256MB Kodak card that shipped with my old camera. I've got it filled with MP3s and POIs and I haven't had any lag issues, lockups, or power issues.

Once the 2 new card get here, I'm going to be loading one up with my music, and one up with the wife's music. The 760 with the traffic reciever is the most powerfull FM transmitter we've ever used, so we use the Mp3 player quite often.

I'll let you know if we have any problems...

No problems so far on my 760. It has the 2.9 firmware and the latest 2009 North America NT map.

I have a 4GB SDHC Kodak card that was on sale 2 weeks ago, it came with its own USB reader. It's been inserted on the nuvi since the day I bought the card. The card is half-full with mp3's, grouped by albums per folder. The nuvi works flawlessly as an mp3 player while navigating. I have it hooked up to my AUX input.

There's about 20 POI files loaded, with their own mp3 alerts and images. There's also all of Garmin's custom vehicles loaded in the nuvi. (My son likes to play with them.)

Minor complaints:
- battery life, although it is close to the rated spec of 5 hours
- the 1-2 second lag of the map display (no it's NOT 3 to 4 seconds)
- the FM transmitter (but since I have an AUX input, it's really not an issue except for the fact there's all these wires on my dashboard)

The current firmware version is 3.0 for the 760.

I found that using the stealthy looking arrow rather than the vehicles will give you a faster refresh rate while driving. I use an 8GB SDHC card and have the map detail set to most and it tracks right on queue as I pass streets and such.

Thanks for the info.
As I stated in my post, I deleted all the MP3's and still had the problem.
If you use MPTrim it will notify you if you have a corrupted mp3 file.

Thanks

I also noticed this with my Nuvi 350 and now with the 760 as well. For the fastest screen updates, delete ALL the vehicles in the vehicle folder. It will default to a blue arrow with a thin white border. Naturally, you want to back up your vehicles to a folder on your computer first.

I just think it's crappy that some people are forced to delete files from their units while others don't seem affected. I shouldn't have to delete anything if someone else with the same unit doesn't have to. Just a little frustrating. I'm already looking to upgrade or downgrade.

Or maybe i'm just too hard to please.

Nobody's forcing you to do anything. We're just sharing ideas and performance tips. Everyone has their own personal preferences like 2D/Track Up vs 3D, etc. Each of these preferences will have some effect on other performance parameters.

In my case, I played with all the POI icons, vehicles and alert sounds when my 350 was new. I eventually noticed that there was a slight performance price with loading up the screens that way. I preferred slightly faster screen updates to all the eye-candy.

You may have a defective unit, or it might just be something obscure like one single corrupt file on your SD card that's causing your Nuvi trouble or some other combination of settings and files. I had a little trouble with MP3 files myself. Some were really old and did not have proper track tags. It *is* a computer after all, and they can be really snarky to troubleshoot at times. Chances are, those who are not having trouble have something set or installed differently than you do and we just haven't discovered what it is yet. Hang in there and keep trying.

Guess you missed the point of the rant. I know no one's forcing me to do anything, but thanks for enlightening me.
I've checked for corrupt files and deleted unnecessary voices and icons and have deleted my mp3's , and as I said it worked fine in my 650 without deleting anything. The only point I was trying to make was that it is a little frustrating that some are affected and some are not. That's all.
Thanks

I upgraded the firmware on my 760 to 3.0. I also deleted all my vehicles and am now using the blue arrow. There is STILL a 2-second lag passing intersections and POI's at 35 mph.

I'm going back to the fancy vehicle icons considering I see no difference in the passing lag.

I've just got the 760 and I've also noticed that the unit lags compared to other GPS units I've used (factory units in Acura, Mercedes, and standalone Mio C220). Perhaps people who are not noticing a lag are used to Garmin and everything seem normal to them.

My 750 sometimes gets a several second lag after firmware updates. Resetting the unit and letting it have a clear view of the sky for at least 20 minutes always fixes. I don't use an SD card or have any non-navigational files (pictures, music etc) on it. I do have route gpx files, some with over 50 routes, stored in the Nuvi's GPX folder. Save your favorites, if you want to keep them, before resetting.

Resetting the unit and letting it have a clear view of the sky for at least 20 minutes always fixes.

Care to explain a bit more on how to do this? By clear view do you mean outside of the car, in the car, out a window, moving or not moving, no trees or buildings... what?

I too noticed the lag, deleted all of the vehicles and am sad to say it had little to know effect. I think the next step is to delete MP3s and picture files to see if that frees anything up.

To reset, power on while holding the bottom right corner of the screen and answer yes to the query on deleting all user data.

For a "clear view", no trees/leaves and anything else overhead etc would be ideal. But I find being near a large window in my house works okay as is sitting on the dash of my car. This allows it to pick up some good satellite data. Keep it stationary. I have read that corrupted satellite data stored on the Nuvi can cause lag. In any event, whatever the cause, a reset has worked for me every time I have experienced the dreaded two second lag.

Very weird. Of all the complaining i've done about this, my lag seems to be decreasing. And sorry, I have no idea why. I did a reset many weeks ago, but did not make any difference and it only seems like the last day or so, the lag seems to be less.

I haven't had any problems with my 760 -- but I haven't used an SD card. You might try re-formatting the card then re-load it and see if that makes a difference.

Update firmware 3.00 from the Garmin website

I also have a 760 and have no problems with lag time or performance. Had a friend with a 760 that took inordinate time to aquire satellites. Garmin sent a new unit.

On my 760 I've had infrequent long lag times acquiring the satellites. It hasn't happened but a couple of times though.

Might as well put them back. With my 350 and 760, the difference was slight, but noticeable. I had no idea you were talking about that big a lag. My units have on occasion gotten a little behind but it was usually during speech during a turn and a screen redraw and then caught up again after Nuvi was done speaking.

MP3val is a small, high-speed, free software tool for checking MPEG audio files integrity. It can be useful for finding corrupted files (e.g. incompletely downloaded, truncated, containing garbage)on hard drives or SD cards.

For those interested:
http://tinyurl.com/38q26r

Bob

my screen locked up on me about 3 times in the last month, other than that, hasnt been a problem. I always noticed my map seems slow sine i forst got my first 760 xmas, im on #2. usually i dont notice any problems with my memore

I am also facing a similar type of problem with 760. it display a messeg " Bluetooth Software Update 0%." & then it always locked. Keep tapping the screen but no result. everytime i have to unplugged it and then plugged it for turning it on & working.
So, just wondering if anyone else has had this problem? & what is the solution? coz my unit is just one month old and no update is required.

i got thr bluetooth message when i first got my first 760, it seemed it updated itself, maybe it was DL the other bluetooth device? after that once, never seen it again.

Like I said in my first post in this thread, the 2 second lag was a minor complaint. The original poster was complaining of 3-4 second lags with his SD card inserted!! Now that's a lot.

And going at 35 mph I haven't really gone past the intersection that much after 2 seconds. I've learned to live with it in the short time I've had the unit. (I've yet to take it on the freeway to see what the lag is at higher speeds; there are no freeways on any of my daily routes.)

Just because your unit is only one month old doesn't mean it doesn't need an update. The unit software was put on it long before you purchased it. Use Garmin's web updater. A number of folks had issues with the bluetooth until they updated the unit.

Thanks dog_poop, I have been looking for this for quite a while now...

Not sure if somebody mentioned this already, but it sounds like you have the power switch set to "Lock Screen". This is when the power switch on the 760 is slid to the full right. It is a feature, not a bug. To reset lock screen without rebooting, just slide the switch to full left and let go.

I had some sort of similar problems the first week or two, where it would turn off all of a sudden, or just freeze, this happened about 4 or 5 times, but now it has been fine, the only thing I did since then was upgrade the software to the latest version (3.0). I believe it to be more of a software problem, but who knows. The first week I might not had an SD card, where now a days I do have one permanently, with a whole bunch of music.

Refresh rate on occassion might be a bit slow, but not more than a second.

The power switch was not in the "LOCK" position. I think you get a message that tells you that it's locked, when you tap the screen, when the power switch is in the lock position.

Well It's been over a week, and no more problems with MP3 player and lock-ups, with the new SD card.
I do, however, still have the problem with map lag time, only when the SD card is installed. When I remove the card, the lag time is acceptable.
I have tried several different units, and when the SD card is installed, they all have the lag time problem.
Also others have reported the same thing.

I have contacted Garmin, and hopefully the next firmware update will address this issue.

Oh well, just an idea. I think you're right about the message.

I have a no name 2 gig SD card and don't have any issues with it.

Anyone know what kind of processor they are using in the 760?