Bought a new Garmin 62s. So far it is a very good unit. I then ordered a pre-loaded Garmin City Navigator Micro SD card. Installed it into slot the only way it goes in and is held secure. When I turn on the GPS the message "Cannot Unlock Maps" displays and the only map available is the GPS basemap. There was no unlock code packed with the Garmin Micro SD Card City Naviagator. I did burn a backup DVD with all the data on the Garmin preloaded card if that could be the cause? Any help is greatly appreciated.
The message "Cannot Unlock Maps" tells me the card is being read. I would contact a Garmin support specialist and he will walk you through all the files that should be on the sd card. There are several files other than the gmapsupp.img that should be there. Sounds to me like you may have accidentally deleted the key unlock files.
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