04-05-2018, 05:33 AM
In the file browser, tap the storage icon at the top of the screen (three stacked rectangles) which should display an option to take you to the internal storage root. Then try to link to a file. If that works, then the problem is with linking to files on external SD cards. If that is the case, I'm not sure if there is anything I can do about that as the OS may not let me send an intent to open a file on the removable SD card due to permissions. I will try to test this on my phone.
Mike
Mike