I posted "world_airports-master.zip" a few posts back, after downloading you unzip it and put all the airports into one of the already installed dlc packs (look in android/aerofly/data) then rename one of the dlc packs but putting .zip on the end of the file then don't extract it, just open it and you'll see folders "scenery" "airports" "images" "places" i put them in the "places" folder, then rename the file back to original name. If you fly at night you will see the lights for the runways, thats about it as i haven't managed to get the runway tarmac to load yet but apparently its possible.
Note: remove duplicate airports from the folder that are already in the sim otherwise the original airports won't show any buildings.
It would be better if you could send a video tutorial