It is neither necessary nor allowed to make doubleposting in the hope to get a faster answer.
Please check the instructions in the first posting,
go to the 895 map thread, check the map charts and download the maps you need after checking that a meta code is available,
unpack the archive of the Navcore to your SD, do the same for the maps you need,
make sure the map files are their own folders but not inside a sub folder,
use FastActivate premium or any other current tool to activate the maps - the Navcore is ready to go and does not need patching.
If in doubt for the tools, use a tool that allows to use your meta.txt and copy all the meta codes in it that a listed together with the download of the map(s) of your choice.
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