How to get the ANDROID 4.1 Jelly Bean UI on Any android smartphone?

These apps will make your mobile look like it runs on Jelly Bean.

1) Jelly Bean Launcher This Will replace your default Home Launcher with the Jelly Bean style Launcher.And also replace your app drawer and dockbar icons.

2)Jelly Bean Keyboard : This will replace your stock Keyboard witg the Android 4.1 keyboard.

3)JellyBean 4.1 StatusBar : This will repalce your stock status bar with the Jelly bean style status bar.It will show all your notifications and it  also allows some customizations.

4)Lockscreen : I could'nt find a lockscreen app for jelly bean but you can use the Fingerprint Screen Lock Jelly Bean theme.

Or if you use Go locker Use the Jelly Bean Theme For go locker.