At present, I do not believe there is a setting to turn the shutter sound off. Even in "silent" mode, the sound produces.
Note that in some cases not having the sound is illegal...in some secure locations, it is illegal to have a device that does not have the camera sound.
Occam's Razor nearly always applies when troubleshooting technology issues!
New to the Community? Click here and also here for helpful guidance. Also please click here for additional helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions. If anyone has been helpful to you, please show your appreciation by clicking the button. Need a reference to BB10 OS/SR versions? Click here. Need a specific BB10 AutoLoader? Send me a private message.