Quote Originally Posted by quebec001 View Post
so if you put put de same name map inside and SD, gps dont like start ?

so i made one test, i using City navigator North america NT 2014.40 without Mexico in my SD card, and ill made City navigator North Americ Nt 20140 Mexico only inside my gps gmapprom.img
ill give my feed back after
You do not have any problem using this way. File name is not matter but only gmapsupp.img on SD is available and maybe is not available gmapprom1.img inside. We use this method many year... Good luck!