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WIfi: Qualcomm Atheros QCA9377. I have no wifi which is expected, but I don't have bluetooth which is weird. Audio: Conexant CX20753/4. I can see audio input level changes when I speak, but there is no sound out.

thanks for the EFI, I was able to install Big Sur 11.2 on my E470. But I don't have Bluetooth and no sound (I can see microphone input level changes when I speak, but no audio out). Could you please help. My EFI is attached. I only include OpenCore in the EFI for small size. EFI.zip