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Lenovo ThinkPad E470: Big Sur - OpenCore


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2 x comments:

  1. Microphone is under the control of the audio driver, whether you use AppleALC (which works with AppleHDA) or VoodooHDA (which disables AppleHDA). Then, it's down to a matter of the kexts having the correct definitions for the Codec. No such thing as a "microphone EFI".
  2. Please search the forum before posting as your issue has already been reported and addressed here.
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Thanks @Hervé and @Jake Lo to help people. Sorry late answer, because im not receive any notifications about this post. 

On 2/11/2021 at 6:46 AM, ohr said:

Is there a microphone driver or microphone EFI for Lenovo E470 opencore?

My microfone works nice, its necessary know how is your codec and modified in Nvram alcid=X (number of your codec).

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