Issue Description
MacBook camera does not turn on or apps cannot access it.
Common Causes
- App permissions blocked
- Camera service crash
- Hardware conflicts
Step-by-Step Solution
Step 1: Check App Permissions
- System Settings → Privacy & Security → Camera
- Enable camera access for apps
Step 2: Restart Camera Service
- Open Terminal
sudo killall VDCAssistant
sudo killall AppleCameraAssistant
Step 3: Restart Mac
- Test camera in FaceTime or Photo Booth
Step 4: Test in Safe Mode
- Determines software vs hardware issue
Explore Further
- Run Apple Diagnostics
Prevention & Best Practices
Avoid camera-blocking privacy tools.