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Big Sur wifi Broadcom 4331 not working

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Joined
Nov 16, 2018
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20
Motherboard
Z390 Aorus Pro Wifi
CPU
i5-9600K
Graphics
RX 580
Mac
  1. iMac
Mobile Phone
  1. Android
Hi everyone!
I have Brcm4331 wifi card and it work ok in Catalina but not work in BigSur. I think my model drop support already. Anyone can suggest me another model can work in Bigsur and support long time.
Thank!
 
Hi everyone!
I have Brcm4331 wifi card and it work ok in Catalina but not work in BigSur. I think my model drop support already. Anyone can suggest me another model can work in Bigsur and support long time.
Thank!


Fenvi T919 1750Mbps PCIe Desktop Wifi Card BCM94360CD, as far as I know this card works as native


https://www.amazon.com/dp/B07VCCZS54/?tag=tonymacx86com-20
 
Before you dump your card, check your config.plist and verify that Kernel > Quirks > DisableIoMapper is set to YES

I had the same problem where my wifi and ethernet was out after the switch:




Hi everyone!
I have Brcm4331 wifi card and it work ok in Catalina but not work in BigSur. I think my model drop support already. Anyone can suggest me another model can work in Bigsur and support long time.
Thank!
 
Before you dump your card, check your config.plist and verify that Kernel > Quirks > DisableIoMapper is set to YES

I had the same problem where my wifi and ethernet was out after the switch:


Thank for your reply. My config already set it to YES but still not work.
Screen Shot 2020-08-09 at 21.32.52.png
 
Thank you so much. I can't buy product your suggest in my country.
So, how about wifi card below
 
To get your wifi working you need to update to the latest AirportBrcmFixup.kext you also need to view contents of it, goto the Contents/Plugins and remove the AirPortBrcm4360_Injector.kext from it.
 
To get your wifi working you need to update to the latest AirportBrcmFixup.kext you also need to view contents of it, goto the Contents/Plugins and remove the AirPortBrcm4360_Injector.kext from it.
Thank you man. Worked perfetly for BCM943225HMB BigSur 11.1
 
Before you dump your card, check your config.plist and verify that Kernel > Quirks > DisableIoMapper is set to YES

I had the same problem where my wifi and ethernet was out after the switch:
thank you man, I passed all day long trying to discovery what happened after upload to big sur , and you save me.

i just turn true in DisableIoMapper and DONE!!!!
 
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