With the single exception of Tuna's UAV Toolbox, you do not want anything extra on the ST-16... files from the microSD card in the camera, should be transferred directly to your computer. Keep it as clean as possible... and for God's sake do not try to load any other apps on it. PlayStore on the system is a limited modified version just to operate an android based OS. Anything extra can interact in a detrimental manner with the flight controller system and cause undesired behavior from your H.