I just upgraded my old Nuvi 1690 to a new Nuvi 58LM. None of my old maps from my SD card no longer work. The first error is that it " Cannot unlock maps ". The second error is that the " Maps are corrupt and cannot be used. Go to [Only registered and activated users can see links. ] to download the latest maps."

I ran the Protected Garmin file toolkit_2254_x64 on one of the maps and the result is below.

Seems to be a good IMG File as signature 'DSKIMG' was found...
I00009BC.TYP Found Updating IMG information
--> CP 1252 (0x04E4) Found ..
--> FID 2492 (0x09BC) Found ..
--> PID 1 (0x01) Found ..
--> RgnID 0 (0x00) Found ..
--> VenID 0 (0x00) Found ..

Finished to analyze the file !

This IMG File is not locked !

How do I use my old maps on my SD card with this new GPS ? Thanks in advance for the help....