It's true that problem is Android permissions related. And you know that.

But you're saying that you are reading ALL helpful posts about this problem. That means you have knowledge that iGO main folder MUST be at place with write permission for user's apps ...actually you know that, minimum folders "save", "speedcam" and "userdata" MUST be in that place with write permissions. Also, you know all about android and your phone, that means you know where (what is partition with user R/W permisions) you have write permissions...

If you know all that, is it possible to have described the problem? What is the reason for you to place iGO's main folder at wrong place?

...hmm maybe I'm extrasense? ...or, maybe it's true that there's only one solution for your problem?