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Step 1
Go to the Nuvi 350 product page on the Garmin website (see Resources). Although the Nuvi 350 is a discontinued product, the site still offers support, including map updates.
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Step 2
Click on the "Software" option found on the Nuvi 350 product page. You will then be instructed to download the WebUpdater in order to access up-to-date map information for the GPS unit.
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Step 3
Download the appropriate WebUpdater version for your Garmin Nuvi 350. There are both Windows and Mac versions available for the software. You will have to save and open an executable file to your computer in order to install the software. Once downloading is complete, launch the program.
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Step 4
Connect the Nuvi 350 to your computer using the included USB cable. Once you have connected the device, the WebUpdater will scan the unit to determine if map updates are available. It will also check for new drivers that can be updated.
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Step 5
Select "OK" to download the latest map software onto the Nuvi 350 after it has scanned the device. A wizard will pop up on the screen in order for you to track the progress of the download.
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Step 6
Wait until instructed by the Garmin WebUpdater to disconnect the Garmin Nuvi 350. If you disconnect too early, the new maps will not be uploaded onto the GPS.











