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Dell E6540, Bios A27 need OC EFI big sur


pasuri

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I'm follow Takiller thread 

and get OC EFI file , so i install success big sur on my laptop, but on step 4 i don't know how to do continue.
my keyboard and trackpad, wifi not work.
image.png.d8749cfaea1898b5260873f28d8abfdd.png

 

Mr.Takiller or somebody help me to fix it, thanks so much

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@pasuri

Replace the touchpad kext voodooPS2Controller with this one

The fix was also offered in that thread from takiller if you read through the whole thread.

As for Wifi, your DW1506 is atheros based so it's no longer supported after Mojave. You'll need to replace IO80211family.kext from Mojave after installation.

See here for more info. There's an alternative on the last post to inject rather than replace.

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