Hi, if i put the new map file gmapprom on internal memory its only replace the gmapprom file or i should do something else? Thanks (On microsd i know i have to create a folder named garmin and put the file there)

Replace the old gmapprom file is enough.

Ok, i decide to put Europe 2017.10 version on microsd card. Now i go on maps information and only show 2017.10 map and the older version disappear... The old maps still are on internal memory. Should not appear also the old map version?

You must still see the older map. Is the 2017.10 a gmapsupp.img

no, its gmapprom file that i put on microsd on a folder called garmin

I think that is the problem you can not have 2 gmapprom.img. So rename the 2017.10 to gmapsupp.img en look what you got then.

Rename to gmapsupp but its still the same, only CN Europe NTU 2017.10 is displayed...

I don,t no what the reason is.

But do you think that this way the gps wont work ok?

I think that everything should work fine.