Enable Unknown Sources: Go to Settings > Security and check the box for "Unknown Sources." This allows installation from files outside the Play Store.
You will likely see one of these errors: android 4.2 2 download apk
can often clear out old system junk and make your Android 4.2.2 installation feel fresh again. specific lite apps that are still confirmed to work on Jelly Bean? How to Install APK Files on Android Enable Unknown Sources: Go to Settings > Security