Most camera-related issues on macOS are fairly easy to diagnose.
An application asks for camera access, the user grants permission, and everything works as expected.
The interesting cases are the ones that don’t.
A recurring issue on macOS involves applications such as Zoom or Microsoft Teams repeatedly asking for camera access even though camera permission is already enabled in System Settings.
The permission appears to be granted.
The application behaves as if it isn’t.
**
The Obvious Checks
**
The first assumption is usually that the permission was never granted.
Checking the settings seems to rule that out:
System Settings
→ Privacy & Security
→ Camera
The application is listed.
The toggle is enabled.
At this point, many users try the usual fixes:
- Restart the application
- Restart the Mac
- Reinstall the application
Sometimes those steps work.
Sometimes they don’t.
When the Interface Stops Being Trustworthy
One lesson that troubleshooting repeatedly teaches is that a user interface is only a representation of system state.
It is not the system state itself.
In cases like this, the application’s behavior and the operating system’s settings appear to contradict each other.
The settings claim the application has permission.
The application claims it does not.
Rather than assuming the application is wrong, it is worth considering another possibility:
The permission record itself may be corrupted or out of sync.
Resetting Camera Permissions
macOS manages privacy permissions through a framework known as TCC (Transparency, Consent and Control).
Resetting the camera permission database often forces macOS to rebuild the permission record.
tccutil reset Camera
After running the command:
- Quit the application completely.
- Launch it again.
- Grant camera access when prompted.
In many cases, this is enough to resolve the issue.
If the application also uses a microphone, resetting microphone permissions can help as well:
tccutil reset Microphone
or
tccutil reset Camera com.microsoft.teams
When Permissions Aren’t the Real Problem
There are situations where permissions are functioning correctly, but the camera subsystem itself is not.
A useful check is to confirm that macOS can still detect the camera:
system_profiler SPCameraDataType
If the camera is not listed, the problem is unlikely to be related to Zoom or Teams.
Another possibility is that the camera service has become stuck.
Older versions of macOS were particularly prone to this behavior.
Restarting the camera service can often restore functionality without rebooting the entire machine:
sudo killall VDCAssistant
In some versions of macOS, the following process may also exist:
sudo killall AppleCameraAssistant
The operating system automatically restarts these services when an application attempts to access the camera again.
What Made This Issue Interesting
The most valuable lesson from this case was not the command that fixed it.
It was the realization that the visible setting could not be trusted as evidence that the feature was actually working.
The camera permission appeared enabled.
The application continued behaving as though it was disabled.
The contradiction itself became the clue.
When troubleshooting, symptoms often reveal more than settings pages do.
Sometimes the fastest path to a solution begins by questioning whether the information on the screen is telling the whole story.
