Please thoroughly read the links i posted, but in brief:
Remove and replace all earlier series detail map img files along with their related 3D image and JCV files, also remove and replace earlier map related *.asr & *.srx files from ASR folder [leave the language related *.srd files in place or Voice Command won't work].

Before doing anything, make a full backup of your unit and then delete any gma/unl code files from the unit for the detail map[/s] you intend replacing. Unlocked maps do not use those files and leaving them can create problems with later map versions.