Updated on Nov 6, 2015
How do I use maps on my SD Card?
Go to General settings->Data storage folder and choose a folder on extSdCard.
Starting Android version 4.4.x Android has changed the rules so that no application can write to the external SD card anywhere outside its new standard folder Android/data/[PACKAGE-NAME].
So you can only place the data in the standard SD folder: (extSdCard)/Android/data/eu.mapof.canada