I have a W580i from rogers. It came with shutter noise (obviously), i then promptly took it to pacific mall (our.. local asian mall) and had it debranded, shutter noise was gone! then i had to send the phone in for warentee repairs... it came back rebranded with the shutter noise... and just about 10 minutes ago i flashed it with:
W580_R8BA024_MAIN_GENERIC_LA_RED52
W580_R8BA024_FS_HONG_KONG_RED52
HB1-06_Gen_CDA102568_104_R8A_GENERIC_HONG_KONG

and the shutter noise is still there... I've read that to surpress the shutter noise you have to do something inside of the customize.xml file... but it's 2am here in toronto and im sleepy... maybe somebody can come along and let us know what to put in the xml...

=)