2720 USB Port Dead - Unseen by computer
So, my trusty 2720 will no longer connect to a computer via USB cable. I have tried multiple cables, wiggled them, and attached other things (camera) to prove that the USB ports & cables are working fine. I also tried a different computer.
I also installed the most recent Garmin USB drivers.
The tech at Garmin had nothing else to try when I called to ask.
I popped the case open and there was nothing obviously wrong visually with the USB port that I could see.
Any thoughts appreciated. I would really hate to buy another unit right now, but if I can't pull my tracks off the unit or load new routes from the computer, it isn't worth much to me. :cry
My 2610 had the same problem a few years ago (I think it's the same basic construction) and I found the usb connector was broken off of the circuit board.
Here is a link to my repair:
The other thing that it could be is the little tabs on the back of the board need to be bent out slightly to contact the main board when re-assembled.
Rexbro, you are The Man! :thumb Hope you don't mind, but I took screen caps of your pics and added some circles to clarify what I did.
I opened the unit and pulled the small board that has the USB port attached.
Rather than remove the USB port, I tried a slight variation. I let my soldering iron get nice and hot and then held it against the 3 tabs, one at a time, where the circles are. The idea was to liquefy existing solder and allow it to re-join any cracks that might have developed. I could not see any even with my big magnifier, but thought it worth the effort.
Next I took a close look at the tabs on the bottom of the board that make contact to the main board.
What I found was that one or 2 of my tabs were slightly bent down. No way of knowing if it was far enough to cause contact to be lost, but I took a tiny jeweler's screwdriver and bent them all out so that they were just slightly higher than parallel to the board surface.
I then re-assembled and brought it to the computer, where I proceeded to hook up its power cord and USB cable. No sooner did I power it up than the computer recognized it, and sure enough, when I fired up mapsource, I was able to pull the tracks made during my last trip! :clap
Thank you so much, Rexbro! __________________
Re: USB Repair of 2720
Thank you very much. My USB port wasn't being recognized by MyGarmin, MapSource or Basecamp and I removed the rear over and took a look. I removed the USB board and found the tangs were a little bent. I cleaned the tabs and used a flat blade paring knife blade to re-align the tabs on both the boards and re-assembled the unit. Bingo...the 2720 is now recognized and I'm currently updating my Lifetime maps to the 2014.4 versions. I cannot thank you enough for your help. I have a Nuvi (BMW Nav5 on K1600GTL) and 2 2720 StreetPilots, plus a couple handhelds. I prefer the 2720s and am really thankful for this site and your assistance. The pics were invaluable and the directions were spot on.
:clap :clap :clap
2013 K1600GTL BMW...Ruby
For the benefit of anyone new coming across this thread: FWIW, sometimes a failure to recognize unit via USB can be cured with a master reset, so one need not always refresh the physical connections as detailed above. Worth doing a master reset before taking the whole thing apart.
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