*PURCHASE ROOT BROWSER OR ROOT EXPLORER FROM THE PLAYSTORE* Open the app, look for the System folder. Under the system folder look for the media folder, open it. In the media folder you will find the audio folder open that one too. Finally under the audio folder you will see the the ui folder do the same. In the UI folder you will find the camera 1,2,3 & focus sounds. Now delete each one of them by holding down on them and selecting the delete option. That's it! Now to verify go to the camera app (No Reboot required) and Enjoy your sound free experience!