Question about Garmin nuvi 765T GPS Receiver

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Garmin 765t can charge garmin with usb port, however, once garmin is connected to vehicle outlet, garmin will not charge and looses full charge within 30 minutes. fuse is good in vehicle, and works on other devices.

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It's most likely that the fuse in the plug of the charger lead has blown. There's a ring at the top of the charger plug. Unscrew this and the plug comes apart. You'll see the fuse inside. Be careful not to lose any parts.

Posted on Sep 27, 2010

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Will not turn on


Hi Larry -

Your Nuvi 765T should light up when you connect it to your computer's USB port. If it doesn't, there may be a problem with the USB port. Try connecting to the other USB ports on the computer (or a different computer - such as one at work, etc.) if needed. This will help rule out a defective USB port on the computer. You can also connect to a USB charger for another device that you may have instead. It may not charge with another product's USB charger if it provides a very low power output though. The auto plug will not charge the Nuvi when it gets into this condition. Even if it does not light up, leave it plugged into the USB charger / or port over night.

Check the GTM20 traffic receiver plug. It has two LEDs on the body. The one closest to the power cord end is the Traffic Reception Status light and the the one closest to the plug end is the Power light. If either of these lights is on when connected to the Nuvi, the fuse is good. If not not, you may need to change out the fuse in the FM traffic receiver plug. The plug powers both the traffic reciever and Nuvi. Carefully spin off the bright metal ring to disassemble the end to access the fuse. Replace if it is open / blown. If you need replacement parts, they can be purchased from Amazon for about $6.

After charging over night via charger or USB port, disconnect the nuvi from the power / USB cord and turn on by sliding AND holding the power switch in place to turn it on. Keep it held in position for 10 - 15 seconds before letting it slide back. During this time, the Nuvi should start up.

If it will not power up, the battery may be unable to accept a charge. You can replace the battery yourself, but it requires a steady hand, jewelers tools, good eye sight and patience from people selling parts to do this on eBay for as little as $6. Here's a link to those auctions.

If you'd prefer not to do the work yourself, a second option would be to let Garmin handle the "repair". Your 765T is likely out of warranty, and garmin offers a "flat rate repair" fee of $99. If you opt to do this, you will send your 765T to garmin and they will send you a different 765T that has been factory refurbished; complete with the most recent maps available already installed and a gaurantee good for 90 days. Not a bad deal when you consider the cost of upgrading just the maps one time on the 765T. You can start the process on garmin's site, linked here. I have used this service myself and was quite happy with it.

I hope this helps & good luck!

Jan 25, 2012 | Garmin NUVI 765T 4.4 in. GPS Receiver

1 Answer

How do I recharge the battery on my Garmin Nuvi 255WT? I would also like to know how to update my Garmin?


Hello,

Recharging the battery is done by connecting the nuvi to a vehicle power cable in the car through the vehicle power accessory outlet or cigarette lighter.
The unit can also be charged via a powered USB port off your computer via the USB power/data cable or an AC power adapter through the USB power/data cable.

Aug 15, 2011 | Garmin nuvi 255W GPS Receiver

2 Answers

HOW DO I CHARGE MY NUVI 1450 ?


use small size USB cable, connect with PC

Mar 28, 2011 | Garmin GPS

1 Answer

1 year old unit simply won't power on, even after connecting to the computer via usb for 8+ hours. Dead as a doornail.


Have you tried the vehicle power cable? That should charge it better and if it does not work then you should contact Garmin or your local dealer.

Cheers

Jul 12, 2010 | Garmin nuvi 765T GPS Receiver

1 Answer

It doesn't hold a charge vary long, and right now ...


Disconnect the nuvi from the car charger and connect it to your computer's USB port with the supplied USB cable for 8 hours or more (overnight).

This will "recondition" the battery to accept charges again - as running it on the car power can trick the battery into creating a memory of short charge/discharge cycles. You can do this any time the battery starts acting like this.

Good luck!

May 21, 2010 | Garmin nuvi 765T GPS Receiver

1 Answer

My Garmin 765t won't power on. Anything I can do


Unfortunately, there is not a lot of easy user troubleshooting for Garmin units. I will note that the AC adapter that plugs in the USB port will give the unit more power than a USB connection to a computer or the 12vDC car adapter. If you've tried connecting it to the AC adapter and it still won't come on, it is possible the internal battery has gone bad and is consuming more power than the supply can produce to both charge and power up the unit. You can try leaving it plugged into the AC adapter for an hour or so and then trying to power it up with the AC adapter plugged in.

Let me know what you've done so far to troubleshoot and I'll research some more for you.

Feb 24, 2010 | Garmin nuvi 765T GPS Receiver

1 Answer

I tried to update my garmin. The screen doesnt move (or continue to download) I allowed for block ups.


You need to download and install the Garmin WebUpdater and Garmin Communicator Plugin both available from Garmin's website onto your computer. This allows updates to be installed directly to the 765T and provides the necessay USB drivers as well. The 765T must be connected to your computer when performing all updates or upgrades.

You may need to create a MyGarmin account and register your Nuvi 765T.

Resetting the 765T: with the unit off, press your thumb or finger in the lower right corner of the screen while turning the 765T on. This will clear all user data, base map software will remain intact. Connect 765T to computer and proceed with the Garmin WebUpdater.



Dec 22, 2009 | Garmin nuvi 765T GPS Receiver

1 Answer

My nuvi 765 will not turn on. Any solutions? How do you reset it? Vista will not even recognize the Garmin in the USB port. I'll assume that it's because it can't communicate to the OS. :) It just shows...


Resetting the Garmin Nuvi 765T: Press and hold your thumb or finger in the lower right hand corner of the screen while powering the unit on. This will erase all USER data, base and detailed maps will remain intact.

Connect your Garmin Nuvi 765T to your computer via USB.
Download Garmin's Communicator plugin and WebUpdater, both applications can be downloaded from their site. By doing so, this will load the necessary USB drivers to your computer, allowing the Garmin Nuvi to communicate and update firmware and software via the plugin and WebUpdater.

On Vista, the Nuvi 765T appears as Garmin Nuvi without the "T" as well, (a blue triangular icon also appears) it does not affect the ability to transfer files or explore the device in any way. If you load an SD card into the Nuvi 765T, it will appear as a removeable disk and assign it a drive letter, in my case H:

Dec 11, 2009 | Garmin nuvi 765T GPS Receiver

1 Answer

When I start my garmin nuvi 765t. it will try to start but just before finishing loading the maps it shuts down and keeps trying to start until I turn it off. also my computer does not recognize it when I...


Download the Garmin Communicator Plugin and Web Updater software from Garmin's website - both tools are free and will load the proper USB drivers for your 765T.

Ensure that the battery is fully charged via the battery strength icon, prior to aquiring satellites.

To reset the 765T: Hold finger or thumb on lower right hand corner of screen while powering the unit on from the off position. This will erase all user data.

Nov 16, 2009 | Garmin nuvi 765T GPS Receiver

1 Answer

MY GARMIN 765T SAT NAV WILL NOT CHARGE.


Your Garmin is not charging then it is a loose contact or cold solder in charging socket. That is the common problem of socket you must re works the solder there or bring it to a cellphone repair if you are not electronically enclined. If re solder does not fix then problem is in the charging IC. Replaced this IC so it will charged again.

Good luck:

Don't forget to rate:

Jul 08, 2009 | Garmin nuvi 765T GPS Receiver

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