Tahoe no audio device

[ammoune78]

Hey guys, good to be back here after a while!

 

I've got a new HP Engage Flex Retail System mini pc, until before I have installed everything was working like a charm, aud, vid, lan, wif, nvm and etc . Now, after I've installed Tahoe, I've got no audio, whatever layout id i've chosen for the ALC897 (11, 12, 13, 21, 22, 23, 66, 69, 77, 98, 99) it won't enable the audio.

 

I've seen some having the audio working and some not while some other choosing VoodooHDA, but for that particular voodoohda, I've had always harsh and bad sound with it, I'm not going to use it for now!

 

Have any one succeeded in letting the sound to work? Or should I stick with sequoia for the moment until an AppleALC update? 

[Anto65]

AppleHDA / ALC can be restored via MyKektInstaller or OCLP-MOD

[ammoune78]

48 minutes ago, Anto65 said:

AppleHDA / ALC can be restored via MyKektInstaller or OCLP-MOD

 

I've disabled the SIP, installed MyKextInstaller, rebooted, downloaded the KernelDebugKit installed it, copied AppleHDA back to documents, then copied it to desktop, then ran MyKextInstaller, installed the AppleHDA, it told me to reboot, rebooted. But after the reboot, the AppleHDA is not loaded!

[ichelash]

Same thing for me too....nothing works...even voodooHDA 

28 minutes ago, ammoune78 said:

 

I've disabled the SIP, installed MyKextInstaller, rebooted, downloaded the KernelDebugKit installed it, copied AppleHDA back to documents, then copied it to desktop, then ran MyKextInstaller, installed the AppleHDA, it told me to reboot, rebooted. But after the reboot, the AppleHDA is not loaded!

 

[Anto65]

I would like to point out that I am using VoodooHda , installed with this package https://github.com/chris1111/VoodooHDA-Tahoe and Sip 01000000 , 100% working

 

Anyway, I uninstalled everything related to VoodooHDA,

 

changed SIP to 03080000

 

Installed the latest KDK build_25B5042k (since i have installed Tahoe Beta1 
on Tahoe Release use KDK build_25A353 )

 

Rebooted and reset NVRAM so the new SIP settings take effect.

Installed MyKextInstaller v1.4  https://www.insanelymac.com/forum/topic/361340-mykextinstaller/page/12/#findComment-2841291

 

Spoiler

 

Loaded AppleHDa into the application ... restarted 

 

ALC loaded and working 

 

Spoiler

 

 

Well , restored the snapshot again 😁 , To cancel Mykextinstaller patching , and installed OCLP-Mod  https://github.com/laobamac/OCLP-Mod/releases/tag/push-3182c55cab3f2b95d5e659a2e4a19cbd6ddf5832

 

The KDK is already installed from before and SIP already set to 03080000

 

Loaded AmfiPass.kext 1.4.1 into plist and rebooted

 

Selected the patch (AppleHda )  in the settings to apply

 

Spoiler

 

 

and the patching process started                                                                                           

Spoiler

 

- Start the patching process

- Identify the required patch set for Darwin 25

KDK is installed (KDK_26.1_25B5042k.kdk), skipped

- Verify that the root patch is available...

- Patch can be done!

- Mounted Universal-Binaries.dmg

- Run the integrity check before continuing to patch

- Run patches for Veriton S2665G

- Run pre-check before patching

- Create SkylightPlugins folder

- Clean up the auxiliary kernel collection

KDK is installed (KDK_26.1_25B5042k.kdk), skipped

- Find KDK at: /Library/Developer/KDKs/KDK_26.1_25B5042k.kdk

- Merge KDK with root volume: KDK_26.1_25B5042k.kdk

- Successfully merged KDK with Root Volume

- Complete the pre-check and start patching

- Install patch set: Audio patch

- Process installation path: /System/Library/Extensions

  - Install: AppleHDA.kext

- Write patch set information to the root volume

- Check if RSRMonitor is required

- No kext with GPUCompanionBundles was found, RSRMonitor is skipped

- Install com.laobamac.oclp-mod.auto-patch.plist

- Install com.laobamac.oclp-mod.macos-update.plist

- Install com.laobamac.oclp-mod.os-caching.plist

- Rebuild Startup and System Kernel Collection

Install the kernel collection synchronization tool

- Uninstall the root volume

- Patch completion

 

Please restart the system to make the patch take effect

 

Once logged in , ALC was loaded and running

 

Spoiler

 

Both solutions (in my case) work 🤷‍♂️ 

 

... trying to go back to where I started from 😅

Edited September 27, 2025 by Anto65

[ammoune78]

I would like to point out that I am using VoodooHda , installed with this package https://github.com/chris1111/VoodooHDA-Tahoe and Sip 01000000 , 100% working
 
Anyway, I uninstalled everything related to VoodooHDA,
 
changed SIP to 03080000
 
Installed the latest KDK build_25B5042k (since i have installed Tahoe Beta1 
on Tahoe Release use KDK build_25A353 )
 
Rebooted and reset NVRAM so the new SIP settings take effect.
Installed MyKextInstaller v1.4  https://www.insanelymac.com/forum/topic/361340-mykextinstaller/page/12/#findComment-2841291
 
Spoiler

 
Loaded AppleHDa into the application ... restarted 
 
ALC loaded and working 
 
Spoiler

 
 
Well , restored the snapshot again  , To cancel Mykextinstaller patching , and installed OCLP-Mod  https://github.com/laobamac/OCLP-Mod/releases/tag/push-3182c55cab3f2b95d5e659a2e4a19cbd6ddf5832
 
The KDK is already installed from before and SIP already set to 03080000
 
Loaded AmfiPass.kext 1.4.1 into plist and rebooted
 
Selected the patch (AppleHda )  in the settings to apply
 
Spoiler

 

 
and the patching process started                                                                                           
Spoiler

 
- Start the patching process
- Identify the required patch set for Darwin 25
KDK is installed (KDK_26.1_25B5042k.kdk), skipped
- Verify that the root patch is available...
- Patch can be done!
- Mounted Universal-Binaries.dmg
- Run the integrity check before continuing to patch
- Run patches for Veriton S2665G
- Run pre-check before patching
- Create SkylightPlugins folder
- Clean up the auxiliary kernel collection
KDK is installed (KDK_26.1_25B5042k.kdk), skipped
- Find KDK at: /Library/Developer/KDKs/KDK_26.1_25B5042k.kdk
- Merge KDK with root volume: KDK_26.1_25B5042k.kdk
- Successfully merged KDK with Root Volume
- Complete the pre-check and start patching
- Install patch set: Audio patch
- Process installation path: /System/Library/Extensions
  - Install: AppleHDA.kext
- Write patch set information to the root volume
- Check if RSRMonitor is required
- No kext with GPUCompanionBundles was found, RSRMonitor is skipped
- Install com.laobamac.oclp-mod.auto-patch.plist
- Install com.laobamac.oclp-mod.macos-update.plist
- Install com.laobamac.oclp-mod.os-caching.plist
- Rebuild Startup and System Kernel Collection
Install the kernel collection synchronization tool
- Uninstall the root volume
- Patch completion
 
Please restart the system to make the patch take effect

 
Once logged in , ALC was loaded and running
 
Spoiler

 
Both solutions (in my case) work  
 
... trying to go back to where I started from 

did that until the step where i have to reboot because mykextinstaller prompted me, and then kernel panic!

is there any way to fix that?


Sent from my iPhone using Tapatalk

[naiclub]

Try changing the SM BIOS to Mac Pro 7.1

[ammoune78]

Try changing the SM BIOS to Mac Pro 7.1

Sadly, i just started Sequoia installation a few seconds ago!

Just a thing, please, before i installed the AppleHDA i did a mount partition button, and immediately started installing the kext! Is it that, the cause of the Kernel Panic on the boot process?

[ammoune78]

Guys please, i don’t want to bother anyone, but, would someone of you guys, make a steps more clearer, so i can follow them easily, with images if possible?

I really appreciate your efforts, and I really want to keep that Tahoe, because it really took my like!

[ammoune78]

13 hours ago, Anto65 said:

I would like to point out that I am using VoodooHda , installed with this package https://github.com/chris1111/VoodooHDA-Tahoe and Sip 01000000 , 100% working

 

Anyway, I uninstalled everything related to VoodooHDA,

 

changed SIP to 03080000

 

Installed the latest KDK build_25B5042k (since i have installed Tahoe Beta1 
on Tahoe Release use KDK build_25A353 )

 

Rebooted and reset NVRAM so the new SIP settings take effect.

Installed MyKextInstaller v1.4  https://www.insanelymac.com/forum/topic/361340-mykextinstaller/page/12/#findComment-2841291

 

  Reveal hidden contents

 

Loaded AppleHDa into the application ... restarted 

 

ALC loaded and working 

 

  Reveal hidden contents

 

 

Well , restored the snapshot again 😁 , To cancel Mykextinstaller patching , and installed OCLP-Mod  https://github.com/laobamac/OCLP-Mod/releases/tag/push-3182c55cab3f2b95d5e659a2e4a19cbd6ddf5832

 

The KDK is already installed from before and SIP already set to 03080000

 

Loaded AmfiPass.kext 1.4.1 into plist and rebooted

 

Selected the patch (AppleHda )  in the settings to apply

 

  Reveal hidden contents

 

 

and the patching process started                                                                                           

  Reveal hidden contents

 

- Start the patching process

- Identify the required patch set for Darwin 25

KDK is installed (KDK_26.1_25B5042k.kdk), skipped

- Verify that the root patch is available...

- Patch can be done!

- Mounted Universal-Binaries.dmg

- Run the integrity check before continuing to patch

- Run patches for Veriton S2665G

- Run pre-check before patching

- Create SkylightPlugins folder

- Clean up the auxiliary kernel collection

KDK is installed (KDK_26.1_25B5042k.kdk), skipped

- Find KDK at: /Library/Developer/KDKs/KDK_26.1_25B5042k.kdk

- Merge KDK with root volume: KDK_26.1_25B5042k.kdk

- Successfully merged KDK with Root Volume

- Complete the pre-check and start patching

- Install patch set: Audio patch

- Process installation path: /System/Library/Extensions

  - Install: AppleHDA.kext

- Write patch set information to the root volume

- Check if RSRMonitor is required

- No kext with GPUCompanionBundles was found, RSRMonitor is skipped

- Install com.laobamac.oclp-mod.auto-patch.plist

- Install com.laobamac.oclp-mod.macos-update.plist

- Install com.laobamac.oclp-mod.os-caching.plist

- Rebuild Startup and System Kernel Collection

Install the kernel collection synchronization tool

- Uninstall the root volume

- Patch completion

 

Please restart the system to make the patch take effect

 

Once logged in , ALC was loaded and running

 

  Reveal hidden contents

 

Both solutions (in my case) work 🤷‍♂️ 

 

... trying to go back to where I started from 😅

 

I do no why I don't have this option enabled:

 

Quote

 

 

While I followed those steps mitically:

 

1- Well , i've installed OCLP-Mod 

 

2- Then installed KDK for Tahoe Release: KDK build_25A353 as you suggested

 

3- Then used SIP set to 03080000 

 

4- Then loaded AmfiPass.kext version 1.4.1 into my config.plist from ESP\EFI\OC\Config.plist, copied it to => ESP\EFI\OC\Kext folder

 

5- Then rebooted

 

6- Now, when i start OCLP MOD and selected the patch ( AppleHda ) in the settings to then apply it, the option as bellow is grayed out, and I can't know what is in English because of Chinese language.

 

Is there any step i have skipped?

[ammoune78]

Here are the steps that I did, and resulted in a successfully working Audio, according to your first suggestion:

 

 

14 hours ago, Anto65 said:

I changed SIP to 03080000

 

Installed the KDK-25A5279m

 

Rebooted and reset NVRAM for the SIP settings to take effect

 

Installed MyKextInstaller v1.4

 

Loaded AppleHDA.kext from: /Library/Developer/KDKs/KDK_26.0_25A5279m.kdk/System/Library/Extensions/AppleHDA.kext into the application ... restarted 

 

ALC loaded and working

 

 

Quote

 

 

11 hours ago, naiclub said:

Try changing the SM BIOS to Mac Pro 7.1

 

It was not needed

 

10 hours ago, ammoune78 said:

ust a thing, please, before i installed the AppleHDA i did a mount partition button, and immediately started installing the kext! Is it that, the cause of the Kernel Panic on the boot process?

 

Yes, that's exactly what caused the Kernel Panic at boot Process

 

Well, thank you @Anto65 , the sound now is back, and works as it was intended, like before that Apple did that Weird Trick!

 

I'll continue now to solve one left issue with my hack: The wake 

[Mirone]

@ammoune78 
Analyzing the image you posted, the reason for your Kernel Panic and your audio not working is that you are using the wrong KDK, you should use KDK 26.0_25A353 for macOS Tahoe 25A354, lately Apple has not released the KDK for the correct version of macOS, I hope this changes.

Edited September 28, 2025 by Mirone

[ammoune78]

3 hours ago, Mirone said:

@ammoune78 
Analyzing the image you posted

 

Sure  , thanks

 

3 hours ago, Mirone said:

@ammoune78 
 the reason for your Kernel Panic and your audio not working is that you are using the wrong KDK, you should use KDK 26.0_25A353 for macOS Tahoe 25A354, lately Apple has not released the KDK for the correct version of macOS, I hope this changes.

 

I'm back to kernel panic at boot , when i did the following:

 

1- Disabled the AmfiPass.kext from Kernel booting

2- Set the SecureBootModel to Disabled

3- Reverted the csr-active-config back to 00000000

 

Do i have to enable them back all or just one or two options from the bellow, to have back audio and no KP?

 

If i install the KDK-25A353, will AppleHDA.kext be there? Because i didn't see it, from my last check, and i think only the 25A5279m version that contains it if i'm not wrong!

 

As you can see from the screenshot bellow, there is no AppleHDA.kext on the KDK-25A353! Or if it is on another location, please, point me there.

 

Quote

 

Edited September 28, 2025 by ammoune78

[Mirone]

@ammoune78
Open MyKextInstaller and send me a screenshot.

[ammoune78]

34 minutes ago, Mirone said:

@ammoune78
Open MyKextInstaller and send me a screenshot.

 

Here's, but I've deleted the KDK-25A5279m and installer 25A353 to see again if there's the AppleHDA.kext inside the Extensions folder, this is why MyKextInstaller shows the 25A353

 

Quote

 

[Mirone]

Okay, after installing the correct KDK, did you install AppleHDA again?

Do the following: Restore the Snapshot and install AppleHDA again using the correct KDK.

[ammoune78]

12 minutes ago, Mirone said:

Okay, after installing the correct KDK, did you install AppleHDA again?

Do the following: Restore the Snapshot and install AppleHDA again using the correct KDK.

 

But The correct KDK doesn't have a AppleHDA.kext, so that's why I used the one inside the KDK-25A5279m, knowing that I'm on the System Version: macOS 26.0 (25A354).

 

If you think that the AppleHDA.kext is inside the KDK-25A353, please let me know it's path!

[Mirone]

You can use AppleHDA from KDK 25A5279m.