Okay guys maybe I can give some insight to this method and the gameboot on the PS3. So as you know this method dont work. I have tried this and other ways to make a gameboot logo and sound with no success. The fact is since firmware 3-4 the gameboot has been running. When you run a game/app the screen goes black and the particles grow in size and fade out that is the current gameboot.
In theory I have a way to have a gameboot logo but no sound cus that would require vsh.self patch (risk a brick). I will test my method and show/tell any findings or results.
With respect to raddog I think he just wanted someone to test for him as he didn't show his gameboot or sound. I have no issue with that though.