Quote Originally Posted by Jonsen44 View Post
sdcard:
map/ i created this folder and put the Costa Rica NAVSAT 6.4.img in it
garmin/POI there i put Alertas_Version6.3_Español CamarasVelocidad_6.3_NAVSAT_ES RP_6.1.1_1203 in it.
For the nüvi 1490, the road map file is correct in SD:\Map\Costa Rica NAVSAT 6.4 .img
It could also be in SD:\Map\anyname.img
For older models it must go in SD:\Garmin\gmapsupp.img

The POI files indeed go in SD:\Garmin\POI\Alertas_Version6.3_Español.gpi
and in SD:\Garmin\POI\CamarasVelocidad_6.3_NAVSAT_ES.gpi

Make sure you include the GPI file extension in the file name. I did not see that in your post.