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Nuvi 765T (troubles)

 

I am suffering since upgrading from a 660 to a 765T unit. I returned the first unit but the replacement crashes in an identical manner during use. Sometimes it reboots, but usually the screen remains black. It will not always reset by holding the switch to the left. I cannot find any other listings with this issue but wondered if it is a known problem? I have upgraded the maps and base software to ver 3.00.

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my 765T was rebooting itself

my 765T was rebooting itself occasionally, but always resuming the route when it did within 45 seconds or so, and never giving me a black screen.

upgrading to firmware version 2.80 seemed to have fixed it, but I have not taken an extended trip to be 100% sure that corrected my problem.

when firmware version 3.00 became available the other day, I upgraded to it to get ecoRoute, and everything seems to be okay.

are you using an SD card in your 765T, and playing mp3's from it by any chance?

I found out from a post here, and confirmed by Garmin, that there is a 1000 track limit to mp3's, otherwise the mp3 player behaves erratically...maybe that could lead to the nuvi rebooting...when mine rebooted itself on the trip, I had 1300+ mp3's on an 8GB Transcend SDHC card and was playing them in shuffle mode....so I don't know if the firmware upgrade fixed my problem, or not using the mp3 player recently is the reason mine hasn't rebooted itself.

just brainstorming to try to help you out. confused

--
— (Garmin nuvi 765T) — "people who say money can't buy happiness, don't know where to shop"

I have just received my

I have just received my THIRD 765T, two from Cartoys and a third from Garmin, as a replacement because of the exact same problem. Now, the third and last replacement, is doing the exact same thing...rebooting. I'm really getting sick of this. Now I wil return it for the FOURTH time. I updated all the newest software, using webupdater and I don't have any mp3's on a data card. I'm at my wits end and realy fed up with the 765T. This has not been a rare occurance, tons of people are expericing the same problem. I am going to ask for a refund or upgrade. Replacing a unit 4 times is a bit excessive, I think.

wow

I would like to think that maybe I am just lucky, but if your experience is any indication, it looks like I may have some more trouble yet to come.

perhaps it is as simple as a bad production run...maybe the one I bought from Amazon was from a run that is okay...a few others here have stated that they had the issue, and that the firmware upgrade fixed theirs.

I hope that I am in that group.

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— (Garmin nuvi 765T) — "people who say money can't buy happiness, don't know where to shop"

I hope you are one of the

I hope you are one of the lucky ones. Not only did I have the 'rebooting' problem, on occasion, when switching back from using the fm transmitter to internal audio, I lost all audio, until I switch off the power button for 8 seconds, then the audio returned. I'm afraid, for many people, the 765T is a load of you know what. I will now look to TomTom for a better gpsr.

I might be lucky

I have the 755 and have no major issues so far. no reboot, etc...

what i don't like from the new unit (when compared to the 660 I own), is when you are not on a route, my 660 used to show in the upper green bar the next intersection, so it was usefull to help in knowing which road you are facing. The 755 is only showing the name of the road you are on and i hav'nt found a way yet to change that setting.

Do you have similar issues?

I have put a 16gb sd card in my 755 but hav'nt try it yet with mp3 et jpg. I will test it more in a few month while traveling to Florida from Canada.

Beside the reboot issue, do you like the 705 series?

as someone else said in a

as someone else said in a similar post, knowing the road I am on with my 765T is actually pretty handy as well...it isn't always marked

this is my first GPS, so I have no previous feature to "miss".

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— (Garmin nuvi 765T) — "people who say money can't buy happiness, don't know where to shop"

None

Have the 765T and no reboots at all. Also got from cartoys.

not me

i was thinking about getting a 765t, hearing about it i might go with the 265t

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nuvi 1450T

Sorry To Hear About The Problems

Some of you guys are having. I have never had a rebooting problem with either the 755 or 765 so hopefully you'll get a good one and the problem will be resolved.

All the Garmin's newer xx5

All the Garmin's newer xx5 series of GPS models do not show the name of the road, street or avenue you're presently travelling on when you're in destination mode. Someone here remarked that he didn't care what street he was on; he only cared which street he would be turning onto next.

.

I would much rather see the upcoming cross street displayed on the green info bar than the street I'm currently on. It makes finding streets (especially at night) in unfamiliar areas so much easier when you can see what's coming up by glancing at the GPS. If I'm on a street, I pretty much already know what street I'm already driving on.

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nuvi 760, nuvi 765T, nuvi 855, nuvi 3790LMT, nuvi 3490LMT - SoCal area

I was so impressed with the

I was so impressed with the 765T when I read it about it after it first came out. I was thinking of getting one. But haven't had any issues with my 770 so I think I will just stick with that for now.Bummer that is happening to you.

Green Bar display

DorkusNimrod wrote:

I would much rather see the upcoming cross street displayed on the green info bar than the street I'm currently on. It makes finding streets (especially at night) in unfamiliar areas so much easier when you can see what's coming up by glancing at the GPS. If I'm on a street, I pretty much already know what street I'm already driving on.

My more intelligent half and I were traveling this weekend and we had "Boris" along. When Boris was asked to calculate a route in a rural area the 200 performed admirably. While driving, the green bar would show either the next turn, or, on the open highway with a turn more than 10 miles away, the name of the road. It may be that those looking for the name of the street you are currently on just don't have enough distance between the turns for it to display the current street name.

Pretty much the same happens in the display map mode, but the distance between streets has to lengthen to a couple of miles at least.

--
ɐ‾nsǝɹ Just one click away from the end of the Internet

That goes to show you that

That goes to show you that your Garmin GPS unit could be working great with your present firmware version x.xx and then by upgrading to the newer firmware version, your unit goes wacky on you. It pays to wait a while until the newer firmware version has been confirmed by users to be a stable version.

.

@ a_user

The green info bar works the following ways according to the unit model and if you're navigating a route or not:

xx5 units:
1. When *not* navigating a route will display the street you're currently on.
2. When on a route, will display upcoming turn info.

xx0 units (like the nuvi 750/760):
1. When *not* navigating a route will display the next upcoming cross street.
2. When on a route, will display upcoming turn info.

This behavior should really be made a user preference and not be forced one way or the other on the user. Just my opinion...

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nuvi 760, nuvi 765T, nuvi 855, nuvi 3790LMT, nuvi 3490LMT - SoCal area

I agree with DorkusNimrod

while I have stated before, that I kind of like knowing what street I am on, there are certainly times when I am not on a route with Jill to tell me the road in the dark, that I would prefer the cross street display.

being a user configurable option would be great smile

not being a programmer, I don't have a clue, but is this something that Garmin could provide to 765T owners in a future firmware upgrade? redface

--
— (Garmin nuvi 765T) — "people who say money can't buy happiness, don't know where to shop"

mine did reboot itself for

mine did reboot itself for several times, but recently, after update, I don't see them any more.

.

jim8650 wrote:

there are certainly times when I am not on a route with Jill to tell me the road in the dark, that I would prefer the cross street display.

Agreed...the next upcoming cross street display is a feature that I really miss when using the 765, especially when looking for a street name in the dark of night.

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nuvi 760, nuvi 765T, nuvi 855, nuvi 3790LMT, nuvi 3490LMT - SoCal area

No Longer A Satisfied Customer

As I posted on another thread I had to send my 350 back for a bad power switch, my 750 had to be sent back twice not to mention the corrupted update that left it not working as it should for more than a month. Now after updating my 765 it is having problems with Webupdater and today I tried to purchase NuMaps but it would not recognise the unit and would not download. After a 20 minute wait to talk to a CSR they transfer me to Software where there is a 30 minute wait, but after 10 minutes I get disconnected. I called CS back waited another 20 minutes only to be told by both a CSR and a Software support agent that I am the first to call in with this problem. I had been out of town for the last week anf after wasting my morning on the phone I was going through my email and found this email from a retailer that came in on Saturday:

Hi, the GARMIN website is having some problems with some units being
recognized with the new numaps lifetime updates. GARMIN is working on the
problem. The told us to tell our customers to try it again in a few days to
see if it works then. When I find out the problem has been resolved I'll send out another message. Thanks.

Darrel Goheen
GPS@tvnav.com
http://www.tvnav.com
Voice 785-625-3546/FAX 413-383-8800
AIM: TVNAVGARMIN

Seems I was not the 1st and do not like being lied too. Even as their products have become less reliable the one thing they always had going for them was the CS if they lose that they cannot continue to survive charging top dollar for medicore equipment.

BTW I just got a refund on my NuMaps and will be skipping the program

Nuvi 255W in 3D mode

DorkusNimrod wrote:
jim8650 wrote:

there are certainly times when I am not on a route with Jill to tell me the road in the dark, that I would prefer the cross street display.

Agreed...the next upcoming cross street display is a feature that I really miss when using the 765, especially when looking for a street name in the dark of night.

---------

I drove using the Nuvi 255W in 3D mode and I could see 2 upcoming streets scroll onto the screen all the time.

Possible work-around for WebUpdater problem

mourton wrote:

Now after updating my 765 it is having problems with Webupdater

I'm having the same issue with my 765 after updating to unit software v3.0. WebUpdater will frequently not see the unit as being valid for updates. I have found that if the unit is plugged into the USB port when it is off, the file x:/Garmin/GarminDevice.xml (which is used by WebUpdater for unit ID purposes and is regenerated on every boot) is not being generated completely and is cut off/truncated. If I power on the unit and let it boot fully, then plug it into the USB port, the problem seems to be rectified. It seems as though plugging the unit into the USB port (while the unit is powered off, thus causing the PC's USB port to power it on) is somehow interrupting the creation of GarminDevice.xml

Next time you run across this issue, try to open/edit the file x:/Garmin/GarminDevice.xml with your browser and see if it's a complete file with no errors (scroll to the end). I'll wager that the file is truncated...

Regardless, these firmware updates and now even the map updates (v2009.11) are becoming buggier and buggier.

Hopefully Garmin will get their act together, stop releasing new units by the month, dumping units after 6 months (nuvi 8xx series) and fix outstanding issues with current units rather than breaking things even more.

--
nuvi 760, nuvi 765T, nuvi 855, nuvi 3790LMT, nuvi 3490LMT - SoCal area

.

withashout wrote:

I drove using the Nuvi 255W in 3D mode and I could see 2 upcoming streets scroll onto the screen all the time.

To clarify again, we are talking about the text on the green navigation bar at the top of the screen...not the street names displayed on the moving map.

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nuvi 760, nuvi 765T, nuvi 855, nuvi 3790LMT, nuvi 3490LMT - SoCal area

I think I have to agree, I

I think I have to agree, I do miss having the next street names shown on the green bar, as oposed to the street I am on. Can I be greedy and want both? lol.

street names...and the like

Funny thing is, when I had my 660, I wanted it to show the road that I was driving on. I like the new interface that shows that on my 755T because in the northeast, you don't always know what street you are on.

The way the maps draw now only show the roads that intersect with the road you are currently on, so I can see at a glance what streets I am coming up to. I prefer it that way. The names are still there, just in a different place. More often than not with my 660, I would pass a street before the name popped onto the bar so to me, this is better.

--
Garmin Quest/Quest2/Nuvi660/Nuvi755T

thanks

Well, we just now need to know how to remind Garmin that most users would like to make it a user choice in a future software update.

Possible work-around for WebUpdater problem

DorkusNimrod wrote:
mourton wrote:

Now after updating my 765 it is having problems with Webupdater

I'm having the same issue with my 765 after updating to unit software v3.0. WebUpdater will frequently not see the unit as being valid for updates. I have found that if the unit is plugged into the USB port when it is off, the file x:/Garmin/GarminDevice.xml (which is used by WebUpdater for unit ID purposes and is regenerated on every boot) is not being generated completely and is cut off/truncated. If I power on the unit and let it boot fully, then plug it into the USB port, the problem seems to be rectified. It seems as though plugging the unit into the USB port (while the unit is powered off, thus causing the PC's USB port to power it on) is somehow interrupting the creation of GarminDevice.xml

Next time you run across this issue, try to open/edit the file x:/Garmin/GarminDevice.xml with your browser and see if it's a complete file with no errors (scroll to the end). I'll wager that the file is truncated...

Regardless, these firmware updates and now even the map updates (v2009.11) are becoming buggier and buggier.

Hopefully Garmin will get their act together, stop releasing new units by the month, dumping units after 6 months (nuvi 8xx series) and fix outstanding issues with current units rather than breaking things even more.

DorkusNimrod, I only wish that were true for me and my 755T

Ever since I updated my nüvi 755T to v. 3.0, the other day, my Webupdater, v. 2.4.1 doesn't recognize my device when my 755T is connected to my computer by the correct USB cable.

Yet Webupdater DOES recognize my nüvi 650 when it is connected; and Windows Explorer DOES recognize both my 755T and 650 when they are connected through my USB cable; and POI Loader DOES recognize both devices when connected and works for both.

Prior to uploading v. 3.0 to my 755T Webupdater, and the other things I mentioned, worked well -- except for the occasional unexplained re-boot of my 755T. I used Webupdater 2.4.1 to upload v.3.0 to my 755T device.

Currently, when using Webupdater with the 755T (not the 650 which works fine with Webupdater) I get a screen that sez --

"Some devices were found; however, none have the necessary capabilities. Please make sure your device is connected to the computer and turned on, then try again. You may also need to set the interface option on your GPS to 'Garmin' or 'Host'."

Other than that, my 755T seems to operating correctly.

I tried your suggestion of having my 755T 'ON' before plugging in the USB cable -- but in both cases, having it 'OFF' or 'ON' first, made no difference and I received the results that I mentioned above.

In both cases with 'ON' or 'OFF' when I opened the J:/Garmin/GarminDevice.xml file, as you suggested, it was incomplete and a statement near the bottom of the file read --

=-=-=-=-=-=-=

The XML page cannot be displayed

Cannot view XML input using XSL style sheet. Please correct the error and then click the Refresh button, or try again later.

End tag 'ActiveItem' does not match the start tag 'Location'. Error processing resource 'file:///J:/Garmin/GarminDevice.xml...

=-=-=-=-=-=-=

Note that the original, pristine copy of that file does not contain that statement at all.

If you have further ideas on this problem and how to solve it, please advise. I have written Garmin service on this matter.

Thanks for all you contributions and help to the forum and its users.

Gary Hayman

--
Garmin nuvi 3790LMT, 755T & 650. Prev. Garmins: GPSIII+, SP 2610, 250W; Magellan 2200T __GARMIN TRICKS WEB SITE __http://bit.ly/garmin_gps_tricks

765T

I updated to the 3.0 firmware the other day, so I tried today connecting my unit to Webupdater. It connected fine. Also numaps worked fine since upgrading.

Am I just lucky?

so far, I am lucky too

grush wrote:

I updated to the 3.0 firmware the other day, so I tried today connecting my unit to Webupdater. It connected fine. Also numaps worked fine since upgrading.

Am I just lucky?

I will let everyone know if I see any strange behavior shock

--
— (Garmin nuvi 765T) — "people who say money can't buy happiness, don't know where to shop"

try this Gary...

ghayman wrote:

If you have further ideas on this problem and how to solve it, please advise. I have written Garmin service on this matter.

Backup whatever part of GarminDevice.xml that you may have on the nuvi (likely unnecessary but it's always good to have a backup of whatever), then completely delete it from the nuvi. Let the nuvi try to regenerate it fully by powering the nuvi on first and letting it boot fully, then plug it into the USB port. It -does- gets regenerated on power up but if the file already on it is corrupted/incomplete, maybe this is causing the nuvi to either not regenerate it or error out again.

It's worth a try...

**EDIT** I just connected my 765 to the USB port (with the nuvi powered off) and again got a corrupted GarminDevice.xml file. I deleted the file, power-cycled the nuvi & let it boot fully, then connected the nuvi to the USB port. After doing this, everything is back to normal...the file is not corrupted and WebUpdater sees the nuvi. It's my feeling that the .xml file is definitely getting corrupted somehow...whether it be by plugging it into the USB port while the nuvi is powered off or otherwise. Deleting the file causes the nuvi to regenerate the file from scratch and restores communication between Webupdater & the nuvi.

Note that the file corruption does NOT occur every time...unit software v3.0 for the 7x5 series is definitely causing this since I have never experienced it before on any of my other units.

I also have a support ticket in to Garmin as of Monday morning regarding this issue. I encourage others who are seeing this to also let Garmin know of this bug.

--
nuvi 760, nuvi 765T, nuvi 855, nuvi 3790LMT, nuvi 3490LMT - SoCal area

755t

I have had mine reboot only once and after about 3 minutes it finally returned. The biggest problem I am haveing with mine is when I touch one button, it responds to another. IE if I hit the were to button, view map responds. This also happens when I select other menues. I have updated to the 3.00 and calibrated the screen. Has anyone else had these problems???

765T

hmmm...the reboots I had, all returned within 45 to 60 seconds, and resumed my route, all without me having to do anything (other than touch the "agree" button)...only thing I had to do manually was go back into the mp3 player if I was using it at the time, hit play, and it resumed exactly where it paused.

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— (Garmin nuvi 765T) — "people who say money can't buy happiness, don't know where to shop"

Just thought I'd let you

Just thought I'd let you know that Garmin want the unit back for repair. Jim8650s comments regarding the SD card seemed to help. I did have some mp3s, but only around 60 files. I tried the unit without the card and have had only 2 crashes since, both of which restarted immediately. The two units I have tried have very similar serial numbers? Don't want to admit to one of my told-you-so friends, but I think it might be time for a Tom Tom.

Update: Asked Amazon for a replacement and got this response

"Dear Customer

Thank you for contacting Amazon.co.uk

We are sorry to hear that you have had the same issues with your replacement order.

It seems that this problem is more widespread than we originally thought, so we are unable to send another replacement. We will investigate the matter and try to remedy the situation; however, we cannot guarantee when the error will be fixed.

To issue you with a refund as soon as possible, I ask that you return the item back to us."

not a good sign

Sdr69 wrote:

Just thought I'd let you know that Garmin want the unit back for repair. Jim8650s comments regarding the SD card seemed to help. I did have some mp3s, but only around 60 files. I tried the unit without the card and have had only 2 crashes since, both of which restarted immediately. The two units I have tried have very similar serial numbers? Don't want to admit to one of my told-you-so friends, but I think it might be time for a Tom Tom.

Update: Asked Amazon for a replacement and got this response

"Dear Customer

Thank you for contacting Amazon.co.uk

We are sorry to hear that you have had the same issues with your replacement order.

It seems that this problem is more widespread than we originally thought, so we are unable to send another replacement. We will investigate the matter and try to remedy the situation; however, we cannot guarantee when the error will be fixed.

To issue you with a refund as soon as possible, I ask that you return the item back to us."

perhaps it is a production run issue, with some of us getting units that seem to have responded to the firmware update, and others have not... rolleyes

--
— (Garmin nuvi 765T) — "people who say money can't buy happiness, don't know where to shop"

.

jim8650 wrote:

perhaps it is a production run issue, with some of us getting units that seem to have responded to the firmware update, and others have not... rolleyes

That seems very probable. Look at the units that were returned with bad (and I mean bad) touch screens...I had to return 2 to finally get a good one that didn't jump all over the place. Garmin does not seem to be doing too well in the QC department recently, both in hardware and software... shock

--
nuvi 760, nuvi 765T, nuvi 855, nuvi 3790LMT, nuvi 3490LMT - SoCal area

Try hard reset (755T)

ghayman wrote:
DorkusNimrod wrote:
mourton wrote:

Now after updating my 765 it is having problems with Webupdater

Note that the original, pristine copy of that file does not contain that statement at all.

If you have further ideas on this problem and how to solve it, please advise. I have written Garmin service on this matter.

Thanks for all you contributions and help to the forum and its users.

Gary Hayman

I tried the XML suggestion to no avail. Of course not only was Webupdater not recognizing, but neither was Mapsource.

On another forum I found someone suggested that a hard reset might correct the problem. I tried and sure enough, all better. Now we will see if 3.0 solves the reboot issue, but it seems to have so far.

--
Garmin Quest/Quest2/Nuvi660/Nuvi755T

jim8650 wrote: my 765T was

jim8650 wrote:

my 765T was rebooting itself occasionally, but always resuming the route when it did within 45 seconds or so, and never giving me a black screen.

upgrading to firmware version 2.80 seemed to have fixed it, but I have not taken an extended trip to be 100% sure that corrected my problem.

when firmware version 3.00 became available the other day, I upgraded to it to get ecoRoute, and everything seems to be okay.

are you using an SD card in your 765T, and playing mp3's from it by any chance?

I found out from a post here, and confirmed by Garmin, that there is a 1000 track limit to mp3's, otherwise the mp3 player behaves erratically...maybe that could lead to the nuvi rebooting...when mine rebooted itself on the trip, I had 1300+ mp3's on an 8GB Transcend SDHC card and was playing them in shuffle mode....so I don't know if the firmware upgrade fixed my problem, or not using the mp3 player recently is the reason mine hasn't rebooted itself.

just brainstorming to try to help you out. confused

I also had this reboot issue on my 765. But it happened only after I had SDHC card connected to it for MP3 palyback. Plus I also had issue with MP3 alerts while playing MP3 music.

Today I removed SDHS card and had no issues at all.
Now I have converted MP3 alerts to wav format and will try it tomorrow.

So it appears to be some issue with SD cards and MP3s. I called Garmin today and explained the issues, Garmin CSR said her supervisor would send me eamil within 24 hours. Let us see if I receive any email?

--
Google Nexus 4, Nuvi 3597LMTHD,765T,1490LMT

Last night I convert alert

Last night I convert alert audio clips to wav format and tested it this morning by palying MP3s while going to work. I drive for about 45 minutes and no reboot. On Sunday, I drive for 15 minutes and it got rebooted two times. I think it got rebooted when it tried to play MP3 alert while I was palying MP3 songs.

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Google Nexus 4, Nuvi 3597LMTHD,765T,1490LMT

you may be right

rookie8155 wrote:

Last night I convert alert audio clips to wav format and tested it this morning by palying MP3s while going to work. I drive for about 45 minutes and no reboot. On Sunday, I drive for 15 minutes and it got rebooted two times. I think it got rebooted when it tried to play MP3 alert while I was palying MP3 songs.

but I just want to caution you by saying that the last time I had reboot issues with my 765T, I was playing mp3's from my 8GB SDHC card, but I had already moved over to having my alerts in wav format, so that was not the cause for me.

I did have over 1300 mp3's, and was playing in shuffle mode which may have been a problem.

and I had not yet upgraded my firmware from the original 2.3 version...I have subsequently upgraded to 2.5 ,and now to 3.0, and no reboots so far rolleyes

--
— (Garmin nuvi 765T) — "people who say money can't buy happiness, don't know where to shop"

1300

jim8650 wrote:

I did have over 1300 mp3's, and was playing in shuffle mode which may have been a problem.

Isn't there a limit of 1000 mp3's being recognized by your unit? There is for most according to previous threads. I am not suggesting that this created the reboot problem.

--
Nuvi 660 -- and not upgrading it or maps until Garmin fixes long-standing bugs/problems, and get maps to where they are much more current, AND corrected on a more timely basis when advised of mistakes.

you are correct on the 1000 tracks

but I understood that to mean that you should stay under that limit to assure proper playback behavior, not that it ignored anything over that.

but reading your post, makes me think you are correct.

I was using a playlist that contained more than 1000 tracks, and had it in shuffle mode...that could have confused the hell out of it, or maybe it was attempting to retrieve tracks that were not part of the first 1000 it recognized?

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— (Garmin nuvi 765T) — "people who say money can't buy happiness, don't know where to shop"

mp3

over limit can cause a host of issues according to Garmin!

--
Everyday is a GREAT day :)

When we say 1000 tracks

When we say 1000 tracks limit, is this limit per playlist or total 1000 track which you can keep on your Nuvi?

I think it should be per paly list. What you guys think?

--
Google Nexus 4, Nuvi 3597LMTHD,765T,1490LMT

Confirming

rookie8155 wrote:

Last night I convert alert audio clips to wav format and tested it this morning by palying MP3s while going to work. I drive for about 45 minutes and no reboot. On Sunday, I drive for 15 minutes and it got rebooted two times. I think it got rebooted when it tried to play MP3 alert while I was palying MP3 songs.

Just confirming that this not only happens on the 765T. My 660 also rebooted when mp3 alerts played during the playing of mp3 songs on the unit. The units don't seem to be able to handle the simultaneous playing of alerts and songs that are both in mp3 format. I believe that changing the alerts to wav format solves this issue. I've gone to listening to my music on my mp3 player and not bothered with changing formats.

--
Peter

mp3

rookie8155 wrote:

When we say 1000 tracks limit, is this limit per playlist or total 1000 track which you can keep on your Nuvi?

I think it should be per paly list. What you guys think?

as per Garmin,

1000 is the limit that the nuvis will see, anything over that will cause issues!

--
Everyday is a GREAT day :)

765 problems

petlaur wrote:
rookie8155 wrote:

Last night I convert alert audio clips to wav format and tested it this morning by palying MP3s while going to work. I drive for about 45 minutes and no reboot. On Sunday, I drive for 15 minutes and it got rebooted two times. I think it got rebooted when it tried to play MP3 alert while I was palying MP3 songs.

Just confirming that this not only happens on the 765T. My 660 also rebooted when mp3 alerts played during the playing of mp3 songs on the unit. The units don't seem to be able to handle the simultaneous playing of alerts and songs that are both in mp3 format. I believe that changing the alerts to wav format solves this issue. I've gone to listening to my music on my mp3 player and not bothered with changing formats.

Thanks for confirming it. It is definitely a big relating to MP3s on these unit though I did not notice this problem on 760.

--
Google Nexus 4, Nuvi 3597LMTHD,765T,1490LMT

Nüvi 765T troubles

Baught on mid-decembre 08, my Nüvi 765T is returned to factory (for the first and last time I hope):

It rebooted on it's own, arriving at destination, waypoint or not

It crashed (black screen) when calculating most itinerary involving more than 4 waypoints, uploaded from PC or entered by touchscreen

the PC (W2K-SP4) displayed an "I/O error on USB connection" when trying to update the internal software (Version 2.5) through WebUpdater.
-> I cannot update the Nüvi's internal software
Fortunately, it also happened at the dealer's store.
It is not a cable or PC issue: my Colorado300, connected with the same cable to the same PC doesn't exhibit that problem.

I'm very disapointed by this device
evil

--
-- Alain

What I have read about 765

What I have read about 765 shutdown is combination of factors. The following can cause abrupt shutdown:
1. Bluetooth 2. 3D maps 3. U-Turns avoidance. Some people have suggested that if you disable 3D maps and remove U-Turn avoidance 765 may not shutdown. The biggest culprit is 3D maps. This is what lots of people have suggested as a workaround for the time being until Garmin fix the issues.

--
Google Nexus 4, Nuvi 3597LMTHD,765T,1490LMT

I'm having the same problem

I'm having the same problem with my new 785. I considered the option of disabling the 3D map set...the only problem is... my 3D map is tied to my 2009.1 map. If I uncheck the 3D, it also unchecks the 2009 map and I have no map at all. In my 765, they were seperate and I could uncheck the 3D map, alone. I have decided to disable my bluetooth and see if that takes care of it. I'll try it for a week and see if it works. I'm at wits end..this is my fourth unit...3 765's and one 785 and they all shutdown. Guess there is no reason the exchange for a 5th. In the mean time, my bluetooth and the same phone, works perfectly with my 680. I figure it's the phone compatibility with the 7x5 or it's the bluetooth software of the 7x5, one or the other.

.

gerrydrake wrote:

I considered the option of disabling the 3D map set...the only problem is... my 3D map is tied to my 2009.1 map. If I uncheck the 3D, it also unchecks the 2009 map and I have no map at all.

You can easily disable the 3D Buildings map even though it is now (as of firmware v3.10) tied together with the detail mapset and cannot be deselected via the nuvi. Connect your nuvi to your PC, browse the nuvi drive and rename x:/Garmin/gmap3d.img to gmap3d.img.disabled (so that you know it's been disabled by yourself). The nuvi looks for the 3D Buildings map by that name so if you change the name, it's not found by the nuvi and simply not used. The same goes for the Junction View in x:/Garmin/JCV...if you rename the .JCV file in that folder, Junction View is disabled on the nuvi. I personally don't care for it and have it disabled on mine.

--
nuvi 760, nuvi 765T, nuvi 855, nuvi 3790LMT, nuvi 3490LMT - SoCal area

Thank you. If disabling the

Thank you. If disabling the bluetooth doesn't work, I'll try that, next. Now, if you have a fix for why the 875 refreshes 5 times slower than my 680, I'll be happy..lol. Everytime I go off route and there is a correction, I'm three blocks away before it recalcultes the new route. I'm really getting discussed with the 7x5 series. Think I'll go back to my 680 or try TomTom.

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