I faced the same issue in Android 7.1.1 and the issue is still present after Android 7.1.2 update.
I selected 'Do Not Disturb' and was able to mute Camera Beep sound.
I was asked to try the below by a Nokia Support Executive. You could try the same and let me know if your issue gets fixed ?
"" I would like to inform you that please once follow below steps and try using again.
Step 1) Open Camera >> 3 Horizontal Lines >> Shutter Sound >> Turn On >> Turn Off >> Done.
Step 2) Please try to force restart device by pressing volume up key and power key button for 20 sec then device will vibrate 3 time and device automatically restart
Step 3) If not happen then Go to settings >> about phone >> system updates >> check for updates >> update >> done.
Step 4) Perform Factory Data reset after taking proper back up it will solve your issue (Perform this step if it do not solve your issue till performing above 3 steps) """"
I am having the same issue in Nokia 5 with Android 7.1.2 version and there is no any update available on my phone right now. this camera sound is so annoying.
Agreed it is annoying.
I switched to a 3rd party camera application as the default app didn't get any update to fix this minor MAJOR issue.
Either screenshot / camera snap while listening to music activates the speakers and starts blasting music through both Headphones and Loudspeaker !
They are not accepting the fact that this is a issue with the app and can be easily fixed with the update.
i am facing the same issue in every condition whether i click pics or take screenshot.i tried to mute and do not disturb option also but nothing works..please fix this issue in next update nokia