Sidebar Sidebar
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

Broadcom BCM43XX in High Sierra

S

skearon

macrumors newbie
Original poster
Jul 20, 2016
9
0
I have searched and have found references to the BCM94321MC card, I presume this is different to the BCM43XX ?

Have a flashed 4,1 to 5,1; wifi worked fine in Sierra, upgraded to High Sierra 10.13.6 and now the wifi icon looks like its searching all the time and doesn't show any wifi networks

If I go into System Report and select Network, WiFi I get the info below, as it shows up does that mean the hardware supported and I have a configuration glitch?

Any assistance would be most welcome, and apologises if this has been covered and my attempts to search werent good enough

Software Versions:
CoreWLAN: 13.0 (1350.2)
CoreWLANKit: 13.0 (1350.2)
Menu Extra: 13.0 (1370.4)
System Information: 12.0 (1300.1)
IO80211 Family: 12.0 (1200.12.2)
Diagnostics: 1.0 (805)
AirPort Utility: 6.3.8 (638.9)
Interfaces:
en2:
Card Type: AirPort Extreme (0x14E4, 0x8E)
Firmware Version: Broadcom BCM43xx 1.0 (5.106.98.102.30)
MAC Address: 00:25:4b:8d:19:07
Locale: ETSI
Country Code: EU
Supported PHY Modes: 802.11 a/b/g/n
Supported Channels: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48
Wake On Wireless: Supported
AirDrop: Supported
Status: Network Service Inactive
[doublepost=1550160279][/doublepost]As a test created a fresh install of 10.13.6 to another drive and wifi is working fine, so clearly not a hardware issue

On my boot drive tried creating a new user and logging on as them, but same original issue

It's now fixed, so in case anyone else has the problem, this is what I did:

  1. Enter the following directory path into window and then click on “Go”
    /Library/Preferences/SystemConfiguration/
  2. Find and select the following files that are located within the now open SystemConfiguration folder
    com.apple.airport.preferences.plist
    com.apple.network.eapolclient.configuration.plist
    com.apple.wifi.message-tracer.plist
    NetworkInterfaces.plist
    preferences.plist
  3. Deleted the files above and rebooted Mac (perhaps just in case make a backup of them first!)
 
startergo

startergo

macrumors 603
Sep 20, 2018
5,022
2,283
skearon said:
I have searched and have found references to the BCM94321MC card, I presume this is different to the BCM43XX ?

Have a flashed 4,1 to 5,1; wifi worked fine in Sierra, upgraded to High Sierra 10.13.6 and now the wifi icon looks like its searching all the time and doesn't show any wifi networks

If I go into System Report and select Network, WiFi I get the info below, as it shows up does that mean the hardware supported and I have a configuration glitch?

Any assistance would be most welcome, and apologises if this has been covered and my attempts to search werent good enough

Software Versions:
CoreWLAN: 13.0 (1350.2)
CoreWLANKit: 13.0 (1350.2)
Menu Extra: 13.0 (1370.4)
System Information: 12.0 (1300.1)
IO80211 Family: 12.0 (1200.12.2)
Diagnostics: 1.0 (805)
AirPort Utility: 6.3.8 (638.9)
Interfaces:
en2:
Card Type: AirPort Extreme (0x14E4, 0x8E)
Firmware Version: Broadcom BCM43xx 1.0 (5.106.98.102.30)
MAC Address: 00:25:4b:8d:19:07
Locale: ETSI
Country Code: EU
Supported PHY Modes: 802.11 a/b/g/n
Supported Channels: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48
Wake On Wireless: Supported
AirDrop: Supported
Status: Network Service Inactive
[doublepost=1550160279][/doublepost]As a test created a fresh install of 10.13.6 to another drive and wifi is working fine, so clearly not a hardware issue

On my boot drive tried creating a new user and logging on as them, but same original issue

It's now fixed, so in case anyone else has the problem, this is what I did:

  1. Enter the following directory path into window and then click on “Go”
    /Library/Preferences/SystemConfiguration/
  2. Find and select the following files that are located within the now open SystemConfiguration folder
    com.apple.airport.preferences.plist
    com.apple.network.eapolclient.configuration.plist
    com.apple.wifi.message-tracer.plist
    NetworkInterfaces.plist
    preferences.plist
  3. Deleted the files above and rebooted Mac (perhaps just in case make a backup of them first!)
Click to expand...
I don't know why is not working as according to @dosdude1
IDs that DO NOT work under High Sierra:

- (0x14E4, 0x8C)
- (0x14E4, 0x9D)
- (0x14E4, 0x87)
- (0x14E4, 0x88)
- (0x14E4, 0x8B)
- (0x14E4, 0x89)
- (0x14E4, 0x90)

Any ID not listed, such as (0x14E4, 0x8D), is a supported card, and will work perfectly fine under High Sierra.
http://dosdude1.com/highsierra/

But you can try this kext:

https://www.tonymacx86.com/threads/...s-sierra-on-imac-8-1-early-2008.202572/page-3
 
R

raky25

macrumors newbie
Aug 24, 2020
4
0
skearon said:
I have searched and have found references to the BCM94321MC card, I presume this is different to the BCM43XX ?

Have a flashed 4,1 to 5,1; wifi worked fine in Sierra, upgraded to High Sierra 10.13.6 and now the wifi icon looks like its searching all the time and doesn't show any wifi networks

If I go into System Report and select Network, WiFi I get the info below, as it shows up does that mean the hardware supported and I have a configuration glitch?

Any assistance would be most welcome, and apologises if this has been covered and my attempts to search werent good enough

Software Versions:
CoreWLAN: 13.0 (1350.2)
CoreWLANKit: 13.0 (1350.2)
Menu Extra: 13.0 (1370.4)
System Information: 12.0 (1300.1)
IO80211 Family: 12.0 (1200.12.2)
Diagnostics: 1.0 (805)
AirPort Utility: 6.3.8 (638.9)
Interfaces:
en2:
Card Type: AirPort Extreme (0x14E4, 0x8E)
Firmware Version: Broadcom BCM43xx 1.0 (5.106.98.102.30)
MAC Address: 00:25:4b:8d:19:07
Locale: ETSI
Country Code: EU
Supported PHY Modes: 802.11 a/b/g/n
Supported Channels: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48
Wake On Wireless: Supported
AirDrop: Supported
Status: Network Service Inactive
[doublepost=1550160279][/doublepost]As a test created a fresh install of 10.13.6 to another drive and wifi is working fine, so clearly not a hardware issue

On my boot drive tried creating a new user and logging on as them, but same original issue

It's now fixed, so in case anyone else has the problem, this is what I did:

  1. Enter the following directory path into window and then click on “Go”
    /Library/Preferences/SystemConfiguration/
  2. Find and select the following files that are located within the now open SystemConfiguration folder
    com.apple.airport.preferences.plist
    com.apple.network.eapolclient.configuration.plist
    com.apple.wifi.message-tracer.plist
    NetworkInterfaces.plist
    preferences.plist
  3. Deleted the files above and rebooted Mac (perhaps just in case make a backup of them first!)
Click to expand...
Hi Did u find solution please do share with me if possible , I am also facing same issue. cheers raky
 
You must log in or register to reply here.
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.
Top Bottom