[Guide] Restoring Native/Vanilla AppleHDA


Staff member
For most of the time, when you try to fix audio on your hardware, you forget to backup the vanilla AppleHDA. When fixing, if there's any issue, and the audio doesn't works, you try to fix it in other ways. But as the different AppleHDA is there, so the audio may have some issues. So here's a quick guide to restore the vanilla AppleHDA to your system and then try to fix the audio.

As you're already attempting to install OS X or macOS, so you must be having a bootable USB of the particular version.

1. Plug your Bootable USB
2. Open your USB
3. Right click on "Install macOS Mojave" and select Show package Contents
4. Open Shared Suport folder
5. Mount the Base System.dmg
6. A partition will be mounted on your Desktop
7. Open the partition
8. Navigate to : /Base System/System/Library/Extensions/AppleHDA
9. Create a folder on your Desktop
10. Name it to "AppleHDA Vanilla or Native AppleHDA"
11. Copy the original AppleHDA from the above location i.e /Base System/System/Library/Extensions/AppleHDA

To remove the installed (old) AppleHDA version from your system
1. Open Terminal
2. Type:
sudo rm -R /System/Library/Extensions/AppleHDA.kext
3. When promoted, enter your password.
It will remove the installed AppleHDA.kext

Note :
If you don't want to use terminal, you can do it manually.

1. Navigate to : System/Library/Extensions/AppleHDA.kext
2. Right click on AppleHDA.kext and select "Move to Trash"
3. Empty the trash

To install the AppleHDA
1. Open Terminal
2. Type:
sudo cp -R /Users/yourusername/Desktop/Native AppleHDA/AppleHDA.kext /System/Library/Extensions
3. When promoted, enter your password
4. Rebuild caches using
sudo kextcache -i/
Now you've successfully restored native/vanilla AppleHDA.kext
This method is required for the AppleALC.