MacBook Sound Locked [Causes + Solution]

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The internal speakers may be turned off, there may be a buildup of debris in the headphone port, or there may be a problem with the MacBook’s sound settings. Pressing F10, F11, or F12 on the keyboard will unlock it, mute, decrease, or increase volume, and wipe the dust out of the headphone jack. In this section, I’ll explain how to fix a MacBook Sound Locked and why you can’t change the volume. Continue reading to learn more.

How To Fix MacBook Sound Locked

How To Fix Macbook Sound Locked?

Try the following solutions to unlock the locked volume on your Mac after first playing something in iTunes or Music to confirm that there isn’t any volume at all:

  1. Sometimes, restart your Mac. Try turning it off and on again; it usually fixes problems like this. If you discover you can’t log in after restarting your Mac, 2. See if another app has volume control: In iTunes or Music, the sound might work, but not Safari. Most likely, you unintentionally lowered or muted Safari’s volume. In that scenario, as some videos are muted by default, look for sound controls in the video window you’re viewing and make the necessary adjustments.
  2. Press the volume-up button to make sure the volume isn’t being lowered. To put an overlay on your screen, find the F12 key on the keyboard and press it. If pressing F12 doesn’t help, try clicking the volume button on the menu bar instead.
  3. Check for any external volume devices: Verify that no plug-in devices like AirPods are connected to the Mac by checking the headphone jack. If they are, unplug them to check the level on your Mac’s built-in speakers and see if any sound is playing.
  4. Check to see whether the headphone jack is clogged with junk (certain Mac models indicate it with a red light)-: If there is something in the port, perhaps dust or a small amount of fluff, your volume may cease working. So, blow out any dust or other debris if there is any. Connect headsets and push while holding one of the volume buttons after it has been moved to see if the problem has been fixed.
  5. Check your ports: Try unplugging any devices affecting the audio, such as USB devices, HDMI cables, and thunderbolt adapters, from your Mac. Therefore, be sure that all ports, excluding the audio port, are free.
  6. Think about updating your software. To increase performance and resolve problems, such as locked volumes, make sure your Mac runs the most recent version of macOS.
  7. Try resetting the PRAM: If you carry out this procedure, any sound-related issues might be resolved. Restart your Mac while keeping down the alt (or option) key, command, R, and P at all times to complete the task. Don’t let go of the keys until your Mac machine has started and chimed for this to work. After another chime, let go of the keys.
  8. Reset the System Management Controller (SMC). This method may be effective since the SMC keeps settings for important things like temperature and power management.

If none of the above suggestions work for you, your Mac likely has a hardware issue that needs to be fixed. You can also think about taking the Mac back to the Apple shop to have the hardware inspected. However, before going there, you must schedule an appointment.

Why Can’t You Change The Volume On A Mac?

If pushing the volume up and down buttons don’t allow you to change the sound on your Mac, either your settings are off, the internal speakers are off, or you have external output devices like speakers and monitors set up and linked to your Mac.

To ascertain the cause of your Mac’s malfunction, I advise you to start by selecting the sound option in the system preferences. The chosen output device will be visible once you pick the sound tab in the system options menu and click on the output. Change the settings of any third-party equipment to internal speakers.

Setting up external output devices like speakers and monitors is the main reason your Mac won’t increase or decrease. It might not be possible to adjust the volume on your Mac because these external devices have their volume controls.

Additionally, suspected malware may be the issue and why you didn’t raise or lower the volume. In addition, Boom 3D enables you to modify presets, alter the default volume settings of various programs, and listen to your favorite Music at maximum level.

We can all agree that even if the Mac volume might stop working, it can be fixed in light of this understanding. If you love Apple products, you may occasionally encounter locked or limited volume problems. It would help if you weren’t concerned, though, because there is always a solution.

Is Mac Sound Not Coming Through TV? Here’s What To Do

Keep reading if the sound isn’t coming through to the TV speakers after connecting your TV to your Mac through HDMI.

  • Look at the system preferences: Click Sound in System Preferences. If you want to play sound from your connected TV, click the Output tab and choose the HDMI option. Alternatively, you can choose the HDMI option by right-clicking the sound icon in the menu bar.
  • Verify your tools: Even though it’s unlikely, it’s important to remember that while HDMI cables can transmit audio and video, some older devices might not be able to handle the audio. Verify your setup to make sure this isn’t the case.
  • Check your HDMI cable to see if there are any bends or coils that could be affecting it. Additionally, ensure the port where the HDMI cable is connected doesn’t have bent pins.
  • Try the relevant instructions from the tutorials above, including resetting your Mac’s PRAM and SMC.

The Macbook Sound Is Not Working

Remove any external speakers or headphones. Select Apple menu > System Preferences, click Sound and then select Output on your Mac. Make sure the “Mute” checkbox is not checked, “Internal Speakers” is chosen, and the “Output volume” slider is not entirely to the left.

Why Is My Mac Locked On Mute?

Click the Built-in Output button in the Audio devices pane. Check that the “Mute” box is not checked in the lower right corner. Then If it gives you the option, select “Use this device for Sound Output” by clicking the cog icon the under the Side Bar.

What Does 🚫 Mean On Mac Volume?

If your startup disk displays a prohibitory symbol, which looks like a circle with a line or slash across it, it means that the version or build of macOS on it is not one that your Mac can use. You can force your Mac to shut down by pressing and holding the power button for up to ten seconds.


Look under System Preferences in the Apple menu for the Sound control panel to fix MacBook Sound Locked. Ensure that the output is set to internal speakers and that input is set to the microphone. Open the Audio MIDI setup program located in the Applications folder’s Utilities folder.

Ensure that Built-in Output is selected. These settings can sometimes be incorrect. You can resolve your problem by adjusting them. If not, try rebooting while holding the “P” key to reset the parameter RAM. R, Command, and Option keys until the machine restarts itself twice more automatically. Then double-check your Sound settings.

Frequently Asked Questions

How come my Mac is locked and muted?

Click the Built-in Output button in the Audio devices pane. Confirm that the “Mute” box is not checked in the lower right corner. Then If it gives you the option, select “Use this device for Sound Output” by clicking the cog icon at the bottom of the Side Bar.

How can I turn my Macbook off?

All responses You should see mute/volume down/volume up keys on F10 through F12 on the top row of the keypad, which you can use to mute/unmute and control the volume if you’re using an Apple keyboard or one with Mac-specific keys.

How can I turn my Mac’s sound back on?

Type “CoreAudio” into the search box in the upper right corner of the page, then click with your mouse or trackpad. It will immediately restart your Mac’s Core Audio process if you click the “X” button in the top left corner of the Activity Monitor window after it has been highlighted.

How can I disable the mute button on my MacBook Air?

Search for “utilities” using the magnifying glass in the top right corner of your screen. Select the drop-down menu’s utility folder by clicking it. Choose Audio MIDI setup from the Utility folder. Click the Built-in Output button in the Audio devices pane. Verify that the “Mute” button is not checked in the lower right corner.

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