I have the stock Google Play Edition of the LG G Pad 8.3. It is essentially a nexus device, stock lollipop, but also has an SD card slot.
I want to use ES File Explorer to manage files on the SD card but cannot figure out how to give it permission. It pops up with this image: but selecting to show the SD card does not actually show the external SD card (actually toggling this on/off seems to do nothing).
How do I manage files on the external SD card using ES File Explorer? As far as I can tell, there is no stock file manager to do this.