DNX9260bt update map

Hi!
My name is Vasilis from Greece and i own a Kenwood DNX9260bt. It has the 2010 maps and i would like,if possible to add this map

City Navigator Europe NT 2016.20

As far as i understand,i must download the unlocked .img file (i ve downloaded the one saying original), create a folder to a SD card named Garmin and copy the file (gmapsupp.img) and then? i tried with a 2015 .img, auto drive hellas...i put the sd in, and at he menu of the gps, it doesnt give me any option to update...i can go where the original map and 3d are (you can check/uncheck them) but nothing else... Any ideas?
Can i also add voices? Also should i install/add any other files on the sd (like 3d or jcv or anything)?

Thanks in advance

Any help guys?

Hi,

Still no solution,all posible updates were applied..

Hi,

Finally i managed to make the unit read the map on the sd...
The internal maps are from 2010..is there a way to delete them or update them with unlocked newest version?

Thanks

You can update the intenal map from USB create a Garmin dir insert the unlocked mad and 2 empty file like image

Hi,

This device is a bit old and there are no official upadates...can i manually update its Garmin software (maps are updated) to latest?

Thanks

Only map no Garmin software