Internal Audio Device is Missing

[sichokie]

Hi Everyone, it's been about 2 weeks that my device is not having a sound, while previously it's working fine. I don't know how it started, but it just suddenly lost its sound. I try to fix it with tutorials that I've found online, but it seems not to be working at all.

I've installed Windows via Bootcamp, and the sound is working perfectly on Windows, but when I switched back to Mac, the only sound that I heard was the starting up chimes (the DAAAAANG sound).

My device is MacBookPro14,1 Intel Core 15 (A1708)

https://imgur.com/DB6oxKV

I need help since I'm using this laptop for work and college.

 

[EliteMacx86]

Hi Everyone, it's been about 2 weeks that my device is not having a sound, while previously it's working fine. I don't know how it started, but it just suddenly lost its sound. I try to fix it with tutorials that I've found online, but it seems not to be working at all.

I've installed Windows via Bootcamp, and the sound is working perfectly on Windows, but when I switched back to Mac, the only sound that I heard was the starting up chimes (the DAAAAANG sound).

My device is MacBookPro14,1 Intel Core 15 (A1708)

https://imgur.com/DB6oxKV

I need help since I'm using this laptop for work and college.

Assuming you're not using Clover/OpenCore and the hardware isn't faulty as you have the sound on Windows, try the following.

- Reset PRAM twice
- Update the firmware
- Remove the old preferences files from Library/Preferences/SystemConfiguration
- Update the OS

If the above does not work, perform a clean install using a Bootable USB. As always, back up your data first.

 

[sichokie]

Assuming you're not using Clover/OpenCore and the hardware isn't faulty as you have the sound on Windows, try the following.

- Reset PRAM twice
- Update the firmware
- Remove the old preferences files from Library/Preferences/SystemConfiguration
- Update the OS

If the above does not work, perform a clean install using a Bootable USB. As always, back up your data first.

Hi there! Thank you for your reply. May you enlighten me with your answers?

• Like reset PRAM twice, are you meaning that you press CMD+OPT+P+R until it reboots and then do it again one more time or anything else? Because I've been doing this, but I feel something is a bit off.
• Update the firmware is like updating the software from the Preferences kind of thing, right? If yes, then I've been doing that but with no solution ahead.
• Remove the old preferences. I totally didn't understand this.
• Update the OS—yes, I've been doing this.

What if I say that I also tried to do a clean install with a USB, but the result was still the same? I'm trying to install Big Sur, but when it finishes, the result is still the same. There is no audio at all.

I even try to use VoodooHDA KEXT (which I think it might work, but it didn't)

 

[EliteMacx86]

Like reset PRAM twice, are you meaning that you press CMD+OPT+P+R until it reboots and then do it again one more time or anything else? Because I've been doing this, but I feel something is a bit off.

Yes, it will automatically restart and give you the Bong sound.

Update the firmware is like updating the software from the Preferences kind of thing, right? If yes, then I've been doing that but with no solution ahead.

No, here the firmware is different. Every installer of macOS contains a firmware update for possible supported Mac models. The firmware can be installed by running the installer inside the OS X/macOS. For example, MacPro5,1 supports OS X El Capitan. To update its firmware to support other versions, you need to run High Sierra installer, you don't need to actually install High Sierra, just the firmware update.

Remove the old preferences. I totally didn't understand this.

Remove all the .plists files from Library/Preferences/SystemConfiguration directory, except for the com.apple.Boot.plist

What if I say that I also tried to do a clean install with a USB, but the result was still the same? I'm trying to install Big Sur, but when it finishes, the result is still the same. There is no audio at all.

Well, in that case, it could be an actual hardware fault. Run Apple diagnostics to confirm.

even try to use VoodooHDA KEXT (which I think it might work, but it didn't)

On a real Mac, no extra driver is required such as VoodooHDA or AppleALC as it's all natively supported.

 

[sichokie]

Yes, it will automatically restart and give you the Bong sound.

Then I've actually done this, but from what I know, after you reset the PRAM, the system should boot longer than usual; sometimes it might take about 10-15 minutes. But mine is just restarted like usual. The question is, am I doing it wrong?

Remove all the .plists files from Library/Preferences/SystemConfiguration directory, except for the com.apple.Boot.plist

I've never done this before, but I will try to. After I remove those files, should I immediately restart the system? And is there any specific software or tool for doing this?

Well, in that case, it could be an actual hardware fault. Run Apple diagnostics to confirm.

How do I run Apple Diagnostics?

On a real Mac, no extra driver is required such as VoodooHDA or AppleALC as it's all natively supported.

I see, it's just part of being frustrated; thank you for the reminder.

 

[EliteMacx86]

Then I've actually done this, but from what I know, after you reset the PRAM, the system should boot longer than usual; sometimes it might take about 10-15 minutes. But mine is just restarted like usual.

Not sure where you read that.

The question is, am I doing it wrong?

Not sure about it either!

How do I run Apple Diagnostics?

Boot using Command+D, connect to WiFi, run diagnostics.

I see, it's just part of being frustrated; thank you for the reminder.

You're welcome!

 

[sichokie]

Boot using Command+D, connect to WiFi, run diagnostics.

Hi, sorry for taking so long to get back. I still have the issue; here's my diagnostic report:

This is where it gets confusing; there were no issues found.

Any idea what to do next?

 

[EliteMacx86]

Hi, sorry for taking so long to get back. I still have the issue; here's my diagnostic report:
View attachment 5689
This is where it gets confusing; there were no issues found.

Any idea what to do next?

Reset PRAM thrice. Do a clean install. Make sure the firmware is up to date.

 

[sichokie]

Reset PRAM thrice. Do a clean install. Make sure the firmware is up to date.

I see, so do a 3-time PRAM reset, and then perform a clean install.

Again, questions:
- By clean install, does that mean that I download a particular version of MacOS (currently I'm using Big Sur) and then create an install media from those downloads?
- Can you please explain to me how I check if the firmware is up-to-date or not?

 

[EliteMacx86]

I see, so do a 3-time PRAM reset, and then perform a clean install.

Yes, and if required then SMC too.

Reset and maintain your SMC and NVRAM

How to reset them, and what they do. Includes coverage of the SMC functions in T2 chips, and how to reset them too.

eclecticlight.co

- By clean install, does that mean that I download a particular version of MacOS (currently I'm using Big Sur) and then create an install media from those downloads?

Yes, correct.

- Can you please explain to me how I check if the firmware is up-to-date or not?

Which firmware should your Mac be using? (version 7)

List of current versions of firmware for all models of Mac supported by Ventura, following upgrading to Ventura.

eclecticlight.co