You want to secretly take a picture of something or you just hate that clicking sound when taking picture. If you are in the that position and you are using an iPhone, then the process to turn it off is about to get to you.
? Launch your music app and start playing a song,
? Reduce the volume of your music to zero,
? Launch your camera app and take your picture.
? Then take your picture.
Jailbreaking your iPhone appears to be the best option to disable the camera sound but you need to be a bit tech oriented and be very careful.
2. Secondly, use the below command to rename the camera sound file:
mv/System/Library/Audio/UISounds/photoShutter.caf to /System/Library/audio/UISounds/photoShutter-off.caf.