Hello,
I have a problem with Carminat navigation maps. None of them work: 11.40, 11.45, 11.50. I checked the table and they are compatible with my system. I am following the instructions in ttactivator 1.20. It shows that everything is activated. I have navcore 8.843. The message keeps popping up: this map cannot be used on this TomTom Carminat device.

Hello,
What maps have you tested ? What covering are you looking for ?
Most "high level c automotive" maps with a known metacode are rather old now : 1110 or 1130.
Europe 1150 is the last known map available, but need a 8Gb SDHC card.