The 10.1.5 update requires that you search for (hex) 480077ED instead. The rest of the procedure is the same.
As an added bonus in 10.1.5, if you don't want to see the volume dialog (it can look funny when running some games), you can disable its display by searching for 48008B0D and replacing it with 60000000.
[Editor's note: I haven't tried this myself...]

