Fix a MacBook webcam that is not working

What is going wrong

A MacBook Air or MacBook Pro camera that will not show an image is almost always a video-capture problem: the FaceTime camera is not detected, the app is blocked from using it, or the app is pointed at a different camera. That is separate from the microphone, which has its own permissions and input picker. Until you know which of those three layers failed, a restart or a hardware visit is a guess.

The essential next step is to prove whether the built-in camera still produces video in a simple macOS app, then whether the app you care about has Camera permission and has that camera selected. If Photo Booth or FaceTime shows a live image, the camera module and the system camera service are working; the fault is in permissions, input selection, or the other app. If no macOS app can open the camera, treat it as a system or hardware issue and work through the reversible checks below before assuming the module is dead.

This guide covers the built-in webcam on MacBook Air and MacBook Pro. Menu names differ between System Settings on current macOS and System Preferences on older releases. Exact hardware-reset steps, firmware procedures, and Apple repair eligibility are not in the source material for this article, so they are not prescribed here.

Video, audio, detection, permission, and selection

The webcam is a video device. A black or frozen preview, a camera-unavailable message, or a missing camera in a picker is a video problem. No sound, a muted call, or a missing microphone in an audio picker is a different device and a different permission list. Fixing microphone access will not restore a dead camera preview, and granting Camera access will not restore a silent mic.

• Device detection: macOS can see a camera at all, usually listed as FaceTime HD Camera or a similar built-in name, and sometimes also an iPhone via Continuity Camera or a USB webcam.
• Access permission: the operating system has allowed that specific app to use the camera. A browser also needs a separate site permission on top of the macOS Camera permission.
• Active input selection: the app is capturing from the built-in camera rather than an iPhone, a virtual camera, or an external webcam.

A check at one layer does not prove the others. Photo Booth opening the camera does not prove Zoom has permission. A Camera toggle turned on in System Settings does not prove the meeting app selected the built-in lens. A green camera light or the Control Center camera indicator shows that some process is using the camera; it does not identify which app, and it does not test image quality.

Checks that narrow the cause

Work through these in order. After each result, stop if the cause is already clear. Do not treat a pass or fail as proof about a part the test never touches.

1. Physical view of the lens

Look at the camera above the display. Remove a sliding cover, sticker, or case flap if one is present. Wipe the glass. A cover that is closed produces a black frame even when the camera is on. This check only rules out an obstructed lens. It does not test software, permissions, or the camera module.

2. Is anything already using the camera

On many MacBooks a green LED next to the lens means the camera is powered. On later macOS releases, Control Center and the menu bar can show a camera-in-use indicator. Quit video apps one at a time: FaceTime, Photo Booth, Zoom, Teams, Meet, Skype, browsers with a video tab, and any virtual-camera or effects tool. Then try the original app again.

If the preview appears as soon as another app closes, the camera hardware is fine and two apps were competing for it. This test does not prove a hardware fault if the indicator is off, because a failed camera can also leave the light off.

3. A known-simple macOS camera app

Open Photo Booth, or start a FaceTime video preview, without joining a meeting. If you see a live image of yourself, the built-in camera is detected and the system camera stack can capture video. The original problem then sits in the other app: Camera permission, site permission in a browser, or the wrong camera in that app’s device list.

If Photo Booth or FaceTime also shows a black window, a spinning indicator, or “no camera,” the fault is not unique to your meeting or browser app. Continue with system permissions, then a restart. This test is video only. A working Photo Booth preview says nothing about the microphone.

4. Camera permission for the app you need

On current macOS, open System Settings, then Privacy & Security, then Camera. On older macOS, open System Preferences, then Security & Privacy, then Privacy, then Camera. Confirm the app is listed and the switch is on. If the app is missing, open it once and accept the camera prompt, or add it if the system offers that control.

Turn the app’s Camera switch off, wait a moment, turn it on, and relaunch the app. A denied Camera permission produces a blocked or empty preview in that app only. Other apps can still work. This screen does not select which camera the app uses, and it does not grant microphone access.

5. Which camera the app selected

In the app’s video or device menu, choose the built-in FaceTime camera by name. Deselect an iPhone, Continuity Camera, a USB webcam, or a virtual camera from effects software. On recent macOS, Control Center can also expose camera options, including Desk View or a phone as a webcam.

If the preview appears after you pick the built-in camera, detection and permission were already fine. The app was capturing from another source. This picker does not repair a camera that Photo Booth also cannot open.

6. Browser layers, if the failure is on a website

A site in Safari, Chrome, or another browser needs three things: macOS Camera permission for that browser, the browser’s permission for that site, and the site’s own camera picker aimed at the built-in camera. Check the site’s camera setting in the browser, reload the page, and pick the FaceTime camera again. Success in Photo Booth plus failure on one site points here, not at the camera module.

7. External or extra cameras

Unplug USB webcams and disable Continuity Camera or iPhone webcam use for a moment, then retest the built-in lens. Extra cameras clutter the picker and can become the default. Unplugging an external cam does not prove the built-in module is healthy if Photo Booth still fails with nothing extra attached.

How to read the pattern

What you observe	What that supports	What it does not prove
Lens covered or blocked	Obstruction	Software or module failure
Preview works after quitting another video app	Exclusive use or a stuck capture session	A broken camera
Photo Booth or FaceTime shows live video; one other app does not	That app’s permission, picker, or site setting	Hardware failure
No macOS app can open the camera	System camera service or the built-in module	A single app bug
Camera works; call has no sound	Microphone permission or mic input selection	The webcam

What to change, and how you know it worked

Change only what the matching check supported. Start with steps you can undo. After each change, retest the original symptom in the same app and scene where it failed: the same meeting tool, the same browser site, or Photo Booth if that was already broken.

If another app was holding the camera

Quit the other video app fully, not only its window, then reopen the app you need. The fix worked if the original preview appears without a camera-in-use error. If the conflict returns every time both apps launch, keep only one camera app open, or turn off virtual-camera plugins that insert themselves into every capture session.

If the app lacked Camera permission

Enable Camera access for that app, relaunch it, and accept any new prompt. The fix worked if that app now shows live video. If the switch will not stay on, or the app never appears in the Camera list, the app may need a reinstall or a macOS update; those outcomes are possible explanations, not measured results from this article’s sources.

If the wrong camera was selected

Set the app to the built-in FaceTime camera and apply or save that choice if the app requires it. The fix worked if the preview matches the MacBook’s built-in view, not the iPhone or an external cam. Recheck after the next launch, because some apps forget the device between sessions.

If a website blocked the camera

Allow the camera for that site in the browser, reload, and select the built-in camera in the page. The fix worked if that site’s preview appears while Photo Booth still worked as before. A different site can still fail until you repeat the site permission there.

If no app can open the camera

Restart the Mac, then test Photo Booth or FaceTime first, then the original app. A restart is reversible and often clears a stuck camera service. The fix worked if a live image returns in the app that previously failed.

If a restart is not enough, install pending macOS updates from Software Update and retest. An update can include camera-stack fixes. Side effects include download time, a reboot, and the usual need to re-enter a login password. This article does not include verified official steps for SMC reset, NVRAM or PRAM reset, firmware restores, or third-party camera drivers, so those are not recommended here. Apple’s built-in FaceTime camera is handled by macOS; user-installed “webcam drivers” are not a documented fix for the built-in module in the material supplied for this guide.

When to stop

Stop once the original preview is stable in the app you actually use. If Photo Booth, FaceTime, and your meeting app still cannot open the camera after a restart and a software update, treat remaining work as hardware or system-level service. Next step is Apple or an authorized provider, with the Mac’s model and macOS version, plus the finding that no local app could capture video. Do not keep toggling unrelated microphone settings; they will not restore the webcam image.

Gaps in the supplied material: there are no device-specific test logs, no measured failure rates, and no verified compatibility matrix for a given macOS version, browser build, or Continuity Camera combination. Menu labels and Control Center camera controls vary by macOS release; if a named pane is missing, look for the same Camera privacy list under System Settings or System Preferences on your version rather than assuming the hardware is absent.