Nuvi 3790LMT won't start

 

This is the 3rd time this has happened but here's the deal. Shut off not sleeping, the thing starts, says map loading, then gets a bit brighter, then makes a sound then quits. Does this repeatedly. Will not start at all this time. Two other times it finally did start. I connected it in the car and no luck. Held the top left corner and it says system loading then quits. Bottom right it asks if I want to erase all user data but both yes and no are non responsive. I know calling Garmin will get no where but ill try tomorrow. Any ideas?

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NUVI 660, Late 2012 iMac, Macbook 2.1 Fall 2008, iPhone6 , Nuvi 3790, iPad2

If you have a AC charger for a cell phone or other.............

If you have a AC charger for a cell phone or other charger with a similar sized connector to the 3790's plug it in overnight and then try starting the unit. Sounds like the battery is just to low to start even when plugged in the car.

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GM Built-in Navigation system - Samsung S6 Edge+ Smartphone with Garmin Viago, Google Maps & HERE Apps

Now stuck on loading maps

Title says it. It wouldn't show up on the computer then it did and when I ejected it from the computer it went as far as loading maps and is stuck there. I have a backup but I bet whatever is causing this is in the backup also.

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NUVI 660, Late 2012 iMac, Macbook 2.1 Fall 2008, iPhone6 , Nuvi 3790, iPad2

Won't work on car power either

rjrsw wrote:

If you have a AC charger for a cell phone or other charger with a similar sized connector to the 3790's plug it in overnight and then try starting the unit. Sounds like the battery is just to low to start even when plugged in the car.

It can't be battery because I sat in the car for at least ten minutes with the car running and tried to get it to work. No luck. I have a charger but this unfortunately isn't the problem.

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NUVI 660, Late 2012 iMac, Macbook 2.1 Fall 2008, iPhone6 , Nuvi 3790, iPad2

I'll repeat the two thoughts

The two best suggestions have already been made:

1) Give it a long full charge. (For the cigarette lighter adapter, make sure the socket has power [i.e., no automotive fuse blown], make sure the socket remains live after the car's turned off, and make sure the fuse in the nuvi power cord isn't blown. For a in-house overnight charge, the suggested AC cell phone charger is a good idea--if using a USB port from a computer, be sure the USB ports or computer won't go to sleep and cut power to the nuvi.) You want a long overnight charge. The most common cause of your won't-start issue from what I read here at The Factory is a weak battery, which in some cases is secondary to a failed fuse.

2. Although you suggest calling Garmin will get you nowhere, I think this is an example of when to call Garmin for help, even if it ends up as a warranty replacement of either the GPS or its power cord.

Good luck.

Is the 3790 like the old 8x5 series of nuvis in that the nuvi typically goes to sleep rather than power down? Several of us 885 and 885 owners eventually realized that a near-dead battery occurred so frequently for us that we resorted to removing the battery when the nuvi was not going to be used in the next few hours. Luckily for us, our nuvis were among the very few models that had removable batteries.

Car connection fine

If it were a battery problem Nuvi would mount on computer. It will not mount! I will leave it connected tho. Yes it does have that behavior but the way this is acting I'm betting its software. I will call in the AM.

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NUVI 660, Late 2012 iMac, Macbook 2.1 Fall 2008, iPhone6 , Nuvi 3790, iPad2

10 minutes is not even close to enough time

geochapman wrote:
rjrsw wrote:

If you have a AC charger for a cell phone or other charger with a similar sized connector to the 3790's plug it in overnight and then try starting the unit. Sounds like the battery is just to low to start even when plugged in the car.

It can't be battery because I sat in the car for at least ten minutes with the car running and tried to get it to work. No luck. I have a charger but this unfortunately isn't the problem.

10 minutes is not even close to enough time to get a unit with a dead battery to completely boot up even if connected to the charging source. I have had the same thing happen as you described and after charging with a AC type USB charger over night it booted right up the next day.

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GM Built-in Navigation system - Samsung S6 Edge+ Smartphone with Garmin Viago, Google Maps & HERE Apps

You may be right

rjrsw wrote:
geochapman wrote:
rjrsw wrote:

If you have a AC charger for a cell phone or other charger with a similar sized connector to the 3790's plug it in overnight and then try starting the unit. Sounds like the battery is just to low to start even when plugged in the car.

It can't be battery because I sat in the car for at least ten minutes with the car running and tried to get it to work. No luck. I have a charger but this unfortunately isn't the problem.

10 minutes is not even close to enough time to get a unit with a dead battery to completely boot up even if connected to the charging source. I have had the same thing happen as you described and after charging with a AC type USB charger over night it booted right up the next day.

I have it attached to my Droid charger (don't use that phone anymore tho) and after 15 min I think it's starting. Now I have to figure out if the car charger is bad. I never liked the sleep on this thing. I wonder why it wouldn't mount on the computer.

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NUVI 660, Late 2012 iMac, Macbook 2.1 Fall 2008, iPhone6 , Nuvi 3790, iPad2

Thanks

That's it. Thanks for insisting I overcome my mindset. Its starting now and probably will mount on the computer but that waits until tomorrow. Its all the way off and can sit all night. I knew some part of that old Droid would be useful. Thanks again.

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NUVI 660, Late 2012 iMac, Macbook 2.1 Fall 2008, iPhone6 , Nuvi 3790, iPad2

george,

geochapman wrote:

That's it. Thanks for insisting I overcome my mindset.

There are two things to check. Make certain the fuse in the tip of the car charger is good and the outlet has power. A quick check can be done when you first plug the unit into the car. You should have a battery level indicator at the top right of the home screen. If it has a lightning bolt showing it is receiving power through the outlet and cable. If no lightning bolt then it's one of the two. I would start with the cable.

My 885 has the sleep mode and it can be a PITA. Over the years I have learned to just put it on a charger when we're contemplating going somewhere. That way, even with just a partial charge, it will power up when plugged in.

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Illiterate? Write for free help.

Guess it's not Battery

This AM it's dead. Won't go past Loading maps. A call to Garmin and after him castigating Moto chargers and having me remove the SD card, plugging into computer with no results, he says OK out of warranty but out of the goodness of my heart I'll send you a new (reconditioned) one. I do have a backup which is a little old but I hope I can find my favorites. I use them on the way to Phoenix. I can get my POI's from the computer. Hope this one works. Actually this was the third time this has done this but the first time it really quit.

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NUVI 660, Late 2012 iMac, Macbook 2.1 Fall 2008, iPhone6 , Nuvi 3790, iPad2

That was nice

geochapman wrote:

This AM it's dead. Won't go past Loading maps. A call to Garmin and after him castigating Moto chargers and having me remove the SD card, plugging into computer with no results, he says OK out of warranty but out of the goodness of my heart I'll send you a new (reconditioned) one. I do have a backup which is a little old but I hope I can find my favorites. I use them on the way to Phoenix. I can get my POI's from the computer. Hope this one works. Actually this was the third time this has done this but the first time it really quit.

Even a reconditioned GPS is better than no GPS at all. Good for Garmin.

Do you have to send them the old one?

Glad you have a backup - even if it is a bit old.

OTHER READERS - wouldn't today be a good time to make yourself a backup. - even if it just a copy of your Favorites found at [GPS]:\Garmin\GPX\current.gpx

Turn 3790 completely off when not using again soon

geochapman wrote:

I have it attached to my Droid charger (don't use that phone anymore tho) and after 15 min I think it's starting. Now I have to figure out if the car charger is bad. I never liked the sleep on this thing. I wonder why it wouldn't mount on the computer.

If you just touch the on off button it goes into sleep mode but if I'm not going to be using my 3790 soon I hold the off button for a few seconds and it will come up with a option to completely shut it off instead of just sleep. In the off mode the battery lasts a very long time but in sleep not so long.

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GM Built-in Navigation system - Samsung S6 Edge+ Smartphone with Garmin Viago, Google Maps & HERE Apps

Need to send it back

jgermann wrote:
geochapman wrote:

Do you have to send them the old one?

Glad you have a backup - even if it is a bit old.

OTHER READERS - wouldn't today be a good time to make yourself a backup. - even if it just a copy of your Favorites found at [GPS]:\Garmin\GPX\current.gpx

Oh yes. They want that before they ship another

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NUVI 660, Late 2012 iMac, Macbook 2.1 Fall 2008, iPhone6 , Nuvi 3790, iPad2