A bit of background: On my older phone (Sony Xperia-J), I had a Nyan Cat application. Not the game, but an endless-loop animation. Not YouTube, but locallly held. I upgraded (Sony Z3), but when I went to download it from the Google Play Store, the app had been pulled down. I had the idea of manually pulling the android exec file off of the old phone, and plopping it onto my new phone, connected via a PC by its USB. I learnt that android .exe files are .apk files, and the executable could be held in one of the following locations: - system/app - data/app - data/app_private So away I went with Explorer, but couldn't get the phone to show me any system directory. A full search for *.apk resulted in zero hits. Are these directories hidden to external file-managers, and is there anything I can do to manually find this exec file?