Question about Garmin Nuvi 760 Handheld GPS Receiver

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Garmin 760 will not power on

I used webupadter from Garmin for my new 760 and now my GArmin will not power on. It will go to Garmins jump screen then power down. The computer will not recoognize it when attached to the usb. How to fix? Rest will not work.I do have the same problem on the 775t, after i added up some maps in the garmin directory. Its the third 775t unit i have changed through my UK dealer. I wonder if there is any really hard reset of the unit to its factory defaults, erasing everything else new, that I might have added.

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  • Dimitris Ioannidis Jan 09, 2009

    I did took the battery out, wait a while but the 775t nuvi is doing the same thing. It keeps trying to boot load the maps and then it goes blank (it turns its self off). Everything started when i tried to load one more map on the Garmin directory, included the keys ofcource in the unl file. I really need to hered reset the garmin 775t to its factory default erasing even every extra maps added in it. Thanks Dimitris

  • Dimitris Ioannidis Jan 09, 2009

    I did took the battery out, wait a while but the 775t nuvi is doing the same thing. It keeps trying to boot load the maps and then it goes blank (it turns its self off). Everything started when i tried to load one more map on the Garmin directory, included the keys ofcource in the unl file. I really need to hard reset the garmin 775t to its factory default erasing even every extra maps added in it. Thanks Dimitris

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9 Answers

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Is the battery charged? What does the battery indicator say? If you are using it in the car, is the power cord connected and working properly? If it is working correctly, you should see a lightning bolt symbol over the battery bar graph showing that it is connected to an external power source and that it is charging.
Try plugging it into your PC and looking at the battery indicator. Do you see the lightning bolt? Does it shut off when your using it on the PC? If not, there is something not right with the car adapter. Also, just because it was plugged into the car adapter does not mean it was charging. Many cars will turn off the cigarette/accessory jack when the ignition is off or shut off after a short while to protect the car's battery from being run down. Try hooking it up the the PC overnight and leave the PC on. In the morning try using it. Does it still shut off? If so, the internal battey may be bad. If it works and doesn't shut down, you have a problem with it not charging in the car and the adapter may be bad.

Posted on Jan 09, 2009

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Are you using a USB cable that you got from Garmin? You might have to buy their cable, as opposed to using one that you already had lying around. There are tons of people having issues like this. Garmin doesn't include the USB cable with the unit. Your camera cable has the same style of plug, so you hook it up - and then the weirdness starts. Some people get lucky and it works, while others find symptoms as described above. Garmin really ought to include a USB cable with the device if a special one is required. This is giving them a black eye whether they realize it or not.

Posted on Jan 09, 2009

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HI
You can try a master reset: press and hold the lower right corner of the screen and power it on. You should get a message asking if you want to delete user data just say yes.

Posted on Jan 09, 2009

  • ABHISHEK.C
    ABHISHEK.C Jan 09, 2009

    Are you using a USB cable that you got from Garmin? You might have to buy their cable, as opposed to using one that you already had lying around. There are tons of people having issues like this. Garmin doesn't include the USB cable with the unit. Your camera cable has the same style of plug, so you hook it up - and then the weirdness starts. Some people get lucky and it works, while others find symptoms as described above. Garmin really ought to include a USB cable with the device if a special one is required. This is giving them a black eye whether they realize it or not.


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You can try a master reset: press and hold the lower right corner of the screen and power it on. You should get a message asking if you want to delete user data just say yes.

Posted on Jan 09, 2009

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The hard reset didn't work. Garmin Nuvi 775 keeps powering up and turning off. 

Posted on May 03, 2009

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Reset by turning on and keeping finger on the screen then clicking 'yes' to 'reset all user data".
try hooking it with computer connecting usb wire several times as sometimes if it is not getting connected this happens.also try to check out in any other socket of usb in your computer.
for more details check out this link
http://www.poi-factory.com/node/13662
thanks.

Posted on Jan 09, 2009

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Remove battery then clean it then refix again.also if it start upgrade it from garmin site.

Posted on Jan 09, 2009

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You have tried turning the unit off and plugging it into the usb again and running updater again ?

Posted on Jan 09, 2009

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The only way is resetting by turning on and keeping finger on the screen then clicking 'yes' to 'reset all user data"

Posted on Jan 09, 2009

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