Which Mapchanger you use Internal map_changer_here_tomtom.zip
or External ExternalMapChanger.zip with Mapchanger_nextgen.apk

We're missing all this data and we can't guess it.

To be practical:
1/ Put the Here and TomTom maps in iGO_XXX\content\map

2/ Activate the ux located in the folder ux_additionally: map_changer_here_tomtom.zip--- by removing the three --- and put it in the folder ux.

3/ Disable the ux ExternalMapChanger.zip by adding three ---.

Regards