Now for the fun part. Using Nova Prime on Android 4.4.2, you can simulate a modern OS.
: Clean up your interface by hiding rarely used apps from the app drawer without needing to uninstall them. App Drawer Groups
Prime unlocker APK was installed on SD card (corrupts after mount). Fix: Move both Nova Base and Prime Unlocker to Internal Storage ( Settings > Apps > On SD card → Move to phone).