I fixed the problem. To update the navigation the following files are necessary:
garmin
-gmapsupp.gma (empty file made of a notepath-file)
-gmapsupp.unl (file with unlock code, generated with your device id and map FID)
-gmapsupp.img (the new maps)
-GarminDevice.xml (the care radio/navigation put this file on the usb. in this file the device-id can be found)
-ADR (folder)
- xxxx.asr -files
-JCV (folder)
- xxxx.jsv files
-PNX (folder)
- xxxx.pnx files
Updating wil take some time (25 minutes)
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