Question about Garmin StreetPilot c340 GPS Receiver
Can't upload updated maps. Downloaded software but it won't install. Error message says "serial Com1 port does not exist". The Garmin GPS is on and USB plugged into computer. How do I set it to "Garmin" or "Interface" mode?
Try this link here not sure what i does since i use other methods to update maps and i don`t use garmin, but maybe this will get you pointed in the right direction
Hope this helps
Posted on Apr 27, 2010
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Posted on Jan 02, 2017
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