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Cannot download map update data from Garmin Map Update 2008 to my StreetPilot C330. After connecting the GPS unit to the computer, the software update performed OK, then when I hit Continue and entered unlock code provided on the back of the DVD container, received alert "We were unable to retrieve unlock codes from your GPS unit. Contact Garmin Customer Support." I tried reloading the disk, turning GPS unit off and then back on, to no avail. Using a Mac Powerbook G4 OS10.4.10.Cannot download map update data from Garmin Map Update 2008 to my StreetPilot C330. After connecting the GPS unit to the computer, the software update performed OK, then when I hit Continue and entered unlock code provided on the back of the DVD container, received alert "We were unable to retrieve unlock codes from your GPS unit. Contact Garmin Customer Support." I tried reloading the disk, turning GPS unit off and then back on, to no avail. Using a Mac Powerbook G4 OS10.4.10.
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Download and install Garmin Express from the Garmin site. Connect your GPS to your PC. The program will identify your GPS and let you update any software and maps that are available.
Different manufacturers have different ways of updating their GPS devices. Assuming you own a Garmin GPS device, regardless of its model, here is how to update:
Goto garmin website.
Download web updater
Run this program and then connect the gps, it will then show what updates are available (not maps)
for maps your device needs to be registered on garmin website and it will then show you what maps you can buy for your device.
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To update your nuvi, all you need to do is to connect your nuvi to an internet connected computer and the updates will show on the lower left of your computers screen, click on it and it will update it with the latest software version and maps.
You can also go to your nuvis website and search for latest updates. Just click on the map link and a list will pop up under the map link, select update maps if it is maps you want to update. It will ask you to choose your device from a list, after choosing your nuvi 255w then it will show you the latest maps for your gps, but you have to install its plug ins first.
That is how to update your gps.
Cannot download map update data from Garmin Map Update 2008 to my StreetPilot C330. After connecting the GPS unit to the computer, the software update performed OK, then when I hit Continue and entered unlock code provided on the back of the DVD container, received alert "We were unable to retrieve unlock codes from your GPS unit. Contact Garmin Customer Support." I tried reloading the disk, turning GPS unit off and then back on, to no avail. Using a Mac Powerbook G4 OS10.4.10.
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