Yes, I have done this...matching unlock (.unl) file in the Map folder named the same as the map file. The maps -do- unlock but they do not authenticate. There are two different error messages on the 37xx: "cannot unlock maps" & "cannot authenticate maps". As I stated, the maps -do- unlock but they do -not- authenticate despite using an .unl file with FID set to 2. The reason is that the new .gma protection file that is required by the newer units like the 37xx series is not present.
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