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Maps are locked in Garmin, maps are corrupt

I turned on my Garmin and it says maps are locked out and that the maps are corrupt.

  • What Garmin device? Which maps? We need more info to be able to help!

  • I am trying to update the maps on my Approach S10.  Garmin Express has been updated...in fact it was updated and then deleted and reinstalled.  In my first attempt to update it maps it comes back with an error message saying file size is too large and I must choose specific regions.  When I go to select specific regions, Garmin Express just hangs in "Preparing" mode.  This issue was posted earlier with no specific resolution.  I am operating the most updated version of Windows 10.  I could survive without updating courses except the process has deleted all courses from my watch.  I also tried rebooting watch to original settings but it doesn't seem to do anything with maps.