Garmin nuvi 1390T stuck on loader loading. I tried letting the battery run down of over 24 hours. Once plugged into power I still get the same message. USB not recognized. Can't access it from PC Garmin software can't find the device.

SOURCE: Nuvi 350 System Software Missing

Try this: Hold the power buuton down, you will see on the lower screen the word "Pre Booting - ". Keep holding the power button for about 60 second, then you will see on the lower screen "Booting".
This time, release power button; system will reboot and loading map... again.
I got the same problem, after research on the web. Nick 99990_0 had post this solution on (his Nuvi 660) but it work for my Nuvi 350 too. Good luck.

Minh (NJ)

SOURCE: Garmin Nuvi 260w not recognized by computer

Hi,
Take a look at this site, http://www.garmin.be/missing.html Download and unzip the software, plug your garmin in the USB and start the updater.exe program. It gets you started again. Later on you can use the Webupdater to get possible newer software..
It worked for me and my Zumo550
Goodluck
Auke

SOURCE: My new nuvi 1390T will sometimes reset or freeze

take it back

SOURCE: THE USB PORT THAT MY GARMIN NUVI 270 IS PLUGGED IN TO IS NOT RECOGNIZED BY MY COMPUTER

If they don't give you a new one under warranty, are third party Garmin repair services that will fix it for cheap. Also, I found an DYI GPS repair guide,so you can do it yourself too, not that difficult to solder in a new USB port.

SOURCE: my garmin nuvi 1390t has

1. Press the Volume (Speaker symbol) in the bottom right corner and check that the mute box is not ticked. If it is press it and it will be ok. Also check that the volume isn't fully down.
If that doesn't solve the problem it may be because the voice file is not selected or has become corrupted.

2. Press Tools, then press Settings (or Locale on some models), then press Language. You will see a bar for Voice. Press Voice and select a different voice. If this doesn't solve the problem it's most likely because the voice file has become corrupted. To replace the corrupted file.
3. Download webupdater from http://www8.garmin.com/support/collection.jsp?product=999-99999-27 and connect your satnav to your computer. Install webupdater and your satnav will look for updates. After it's finished it will give you an option to download voices. Click the ones you want and press next. The voices selected will be downloaded to your satnav.
When you have removed the satnav from the computer you'll need to select a voice again as described in para 2 above.