Thread: Garmin 765T will not connect to PC with USB cable.

Try Another PC first.
It could be a USB data pin broken inside the Nuvi as well. There are 5 pins in USB 2 data RX/TX 2 power +5v -5v and 1 resitor ID.
Try spraying the plug on the nuvi with a little bit of contact cleaner.(just a little)
To Update the Firmware, download the file from Garmin and Copy to SDCard/Garmin/Gupdate.gcd (Maybe it will work on 765)
You can copy maps and POI to memory card. So even if the USB is not working you might be able to survive.

Originally Posted by dasilvarsa

Try Another PC first.
It could be a USB data pin broken inside the Nuvi as well. There are 5 pins in USB 2 data RX/TX 2 power +5v -5v and 1 resitor ID.
Try spraying the plug on the nuvi with a little bit of contact cleaner.(just a little)
To Update the Firmware, download the file from Garmin and Copy to SDCard/Garmin/Gupdate.gcd (Maybe it will work on 765)
You can copy maps and POI to memory card. So even if the USB is not working you might be able to survive.

Tried all my other computers and laptops. I also did a continuity test by cutting a USB cable apart and checking for continuity with the mini plug in the GPS and the pin outs on the circuit board in the gps (took the cover off). Each wire does make a connection through the GPS port. Not sure if there is a fuse on the circuit board I can test for?

Updating by SD would be nice but I can not download the newest firmware from the Garmin website as it says I have to use Webupdater to get the current software and since it will not connect to the PC and webupdater says no device connected, I can not download the current software. The GPS is currently at version 3.80