For NO ROOT phone, you have to put iGO folder on internal and map, poi, dem, building on SD .
You can't put on SD folders : save, speedcam, userpoi.
For example, on LG L70, I add in sys.txt:
[folders]
has_secondary_root=1
android_secondary_root_path="/storage/external_SD/addons"
addons="/storage/external_SD/addons"
Spoiler: SD Structure
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