Thread: installing map OK with Oregon 450 but not with Nuvi2689

Hi,
I get a gmapsupp.img file from the net. this file is related to the map of Middle east and Northern Africa. I used Gmaptools im my PC to install the file *.img in basecamp, it works well, then I sent it to the Nuvi2689 without problem but when I put my nuvi on I have the message "impossible de deverrouilleur la carte" and another message "fichier endommagé ".
I did the same thing with my gps garmin Oregon 450 , no bad messages and the map is in the gps Oregon and I can open it without any problem.

Any Idea to fix this problem.

Sorry for my bad english.

Thank you,