MacBook Air M4 Speakers Not Working

🔊 Step 1: Check Volume Level

1. Click the Volume icon in the menu bar (top-right)
2. Make sure the slider is moved all the way to the right (not muted)
3. If volume was at 0, drag it up to 50% and test
4. Also check: System Settings → Sound → Volume slider

Note: If you see an icon with a crossed-out speaker, audio is muted. Click the icon to unmute.

🔍 Step 2: Check Audio Output Device

1. Click the Volume icon in the menu bar
2. Look at the bottom where it says "Output device:" (if visible)
3. Make sure it's set to MacBook Air Speakers, not headphones or external device
4. If it's set to something else, click on it to change it back to the built-in speakers

🎵 Step 3: Check App-Specific Volume

1. Open the app that's producing no sound (Spotify, YouTube, etc.)
2. Check if the app has its own volume slider — turn it up
3. In Safari/Chrome, right-click the tab and check if "Mute" is enabled — click to unmute if it is
4. Test again

🔕 Step 4: Check Do Not Disturb / Focus Mode

1. Click the Control Center icon (top-right)
2. Look for a moon icon (Do Not Disturb) or other Focus badges
3. If enabled, click to turn it off
4. Also check: System Settings → Focus → make sure no Focus mode is active

⚡ Step 5: Disconnect and Reconnect Bluetooth

If Bluetooth is connected to headphones, audio goes there, not speakers:

1. Click Bluetooth icon in menu bar
2. Disconnect any connected devices
3. Test speakers

🔧 Step 6: Reset Audio Settings

1. System Settings → Sound
2. Look for an "Output" or "Output Device" section
3. Click the info icon (i) next to the selected output
4. Look for Reset or Restore Default button and click it
5. Restart your MacBook

🔄 Step 7: Update macOS

1. Apple Menu → System Settings → General → Software Update
2. Install any available updates (many audio bugs are patched in updates)
3. Restart
4. Test speakers

🛠️ Hardware Issues

• Speaker driver failure: One or both speaker drivers burned out
• Audio jack problem: Dust or debris in the audio jack preventing output
• Loose speaker connector: Flex cable connecting speakers to logic board came loose
• Water damage: Moisture in speaker circuits causing no sound or distortion
• Audio codec chip failure: The audio processor on logic board is damaged

Cost: Speaker replacement runs $150-250. Audio codec chip replacement ($250-400) requires logic board work.