NB-1 Update purchase

Sethy350 Registered Users Posts: 6
Apprentice Seeker
I bought an update for my 2015 Mazda CX-5 Touring a year ago. It only worked for 2 weeks. I am still paid through November of this year, but not it just says no card detected. Any ideas? I updated thmy SD card w/the newly purchased maps, but how can I get them to work? Any help would be much appreciated.