Try this: open setings / applications and mark unknown sources, if you did not? download angry birds seassons 1.3.0 apk.and RIO.apk. save on the device, and open astro file manager if you have already installed it? with astro, navigate to the apk file, and just click on it. You will open up a window where you click open the app manager, after this click install, and the second file, it was all procedures