Question about Garmin eTrex GPS Receiver

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Garmin etrex legend cx (the grey one)

I recently tried to upload the Garmin City Navigator NT v7 software (most recent copy) and cannot use it. The message I get is "Can't Unlock Maps." I have the pass key and entered in correctly. Any ideas?

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Call Garmin and they'll double-check the key you've entered with their system to see if it's correct. You might have just entered it wrong. The 25 digit code you enter is a combination of the software code and your unit code. If you gave the incorrect unit ID to the Garmin people, they would then have given you a key which would be incorrect.

Posted on Apr 01, 2008

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Posted on Mar 24, 2008

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