Navman Tracker 5500i GPS Receiver "5500 map" Questions

...map max for my navman 5500 tracker but it wont recoginse the card. I then put it in mynavman 6500 trackfish, and it worked.... any help? Navman 5500 does not support C-MAP MAX maps.. only C-MAP NT+ ...

...is not compatible with the 5500i it needs c-map nt+ chip. 5500 chip is black 5505 is orange I have a Navman 5500 it will not read my C-map NT + card any tips on my problem thanks

...5500 turns on but locks itself in the entry page I can't get my Tracker to go beyond the first page, where we usually hit the ENTER key. It stays there for several minutes. Then it starts searching ...