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BCM94322HM8L in Big Sur


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I have problem with my wifi after update from Catalina. :-(


Previously I copied kext to Library/Extensions and did command belowand it worked.

sudo spctl --master-disable
sudo mount -uw /           
sudo killall Finder  

sudo chown -v -R root:wheel /System/Library/Extensions                      
sudo touch /System/Library/Extensions            
sudo chmod -v -R 755 /Library/Extensions            
sudo chown -v -R root:wheel /Library/Extensions            
sudo touch /Library/Extensions            
sudo kextcache -i /   


But now it ends with this

mount_apfs: volume could not be mounted: Permission denied
mount: / failed with 66


Please help.

Edited by tosziro
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