E6230 Big Sur DW1550 Wifi not work

[mringis]

1 hour ago, Jake Lo said:

Try this

config.plist.zip 5.49 kB · 2 downloads

Still can't detect my wifi card.

14 minutes ago, Hervé said:

@mringis Apple dropped AirPortBrcm4331 kext in Catalina; as such no support for Broadcom card 14e4:43b1 without applying some tricks. Look into our published wireless cards 2nd inventory for details.

I try to use Patched Catalina Kext from github, then update config but still no wifi. delete airportbrcm kext still the same. Then delete patched catalina kext make no differences.

 

I think i messed up something. I'll try to re-install my machine in nest week or so.

 

Thank you all.