This is a small app that can disable camera sound.i also post this on s60 v5 too.pls follow my step:
1.sign with your cer
3.restart your phone
4.go to profile and turn off "warning tone"
5.now u can take a picture without sound
***pls post reply if it work with your phone.
N85 8GB, 5800XM, N95 8GB, 6220 classic, n82 v20 ,E71 v.300.21.012