PPSSPP: You don't have an app that can do this. Solved on MiBox S GEN2 (Android TV/Google TV)
How to play PSP on MiBox S GEN2/3rd GEN Android TV/Google TV boxes? If you try PPSSPP you will see this message: You don't have an app that can do this. Besides that, how to transfer iso or cso files to your TV box? watch this video to learn how to transfer iso/cso files to your TV box and learn how to open them with PPSSPP.