Macbook Pro 8,1 Broadcom Wireless Card (BCM4331) Not Recognized

[slandy13]

I recently installed BackTrack 5 R1 on my late 2011 13" Macbook Pro 8,1 and everything installed fine after some helpful Google searches.

One of the main issues I am having is that the Wireless card on my Macbook isn't being recognized. When I use Wicd Network Manager it doesn't see any wireless networks (No Wireless Networks Found). Also, when I do a iwconfig it says "no wireless extensions". I'm kind of stuck at the moment it would greatly appreciate any help anyone can provide.

The wireless card information after doing a lspci is as follows:
Broadcom Corporation BCM4331 802.11a/b/g/n (rev 02)

Please let me know if anyone has gotten the wireless card functioning correctly on a Macbook Pro 8,1?

Looking forward to your replies.

[cansingungor]

Facing the same problem.. Any help will be much appreciated...

[samsimba3]

even i am facing the same problem......................... every thing mostly is working ...... i have succesfully triple booted mah system.....even lan is working.............. but that wireless isnt detecting any network ..... plssss help !!!!!!!!

[Sharan]

Can you write outputs of
ifconfig
iwconfigls
ls /lib/modules/`uname -r`/build
ls /lib/modules/`uname -r`/kernel/net/wireless
uname -r
i had allot of problems with broadcom but now i have a connection and its working fine >)

[thedutch]

Hi Sharan,

I've got the same issue as the users above described, here's my output:

eth0      Link encap:Ethernet  HWaddr c8:2a:14:0a:02:30  
          inet addr:10.0.1.58  Bcast:10.0.1.255  Mask:255.255.255.0
          inet6 addr: fe80::ca2a:14ff:fe0a:230/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:10492 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8277 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:9763426 (9.7 MB)  TX bytes:1166917 (1.1 MB)
          Interrupt:16 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:344 errors:0 dropped:0 overruns:0 frame:0
          TX packets:344 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:23921 (23.9 KB)  TX bytes:23921 (23.9 KB)

root@bt:/usr/src/linux# iwconfig
lo        no wireless extensions.

eth0      no wireless extensions.

build directory:

root@bt:/lib/modules/2.6.39.4# ls build
arch     crypto                drivers   init     kernel       mm               net             samples   System.map  vmlinux
block    debian                firmware  ipc      lib          modules.builtin  README          scripts   tools       vmlinux.o
COPYING  Debian.src.changelog  fs        Kbuild   MAINTAINERS  modules.order    README.Debian   security  usr
CREDITS  Documentation         include   Kconfig  Makefile     Module.symvers   REPORTING-BUGS  sound     virt

wireless directory:

root@bt:/lib/modules/2.6.39.4# ls kernel/net/wireless/
cfg80211.ko  lib80211_crypt_ccmp.ko  lib80211_crypt_tkip.ko  lib80211_crypt_wep.ko  lib80211.ko

Still trying to figure out how to get this up and running. Could you please help me?

[jarjar06]

For those that are having problems with the BCM4331 wifi card this is how I fixed it:
First: Enable the b43 drivers.
http://www.backtrack-linux.org/wiki/..._Backtrack5_r2
Second: Then you should be able to follow the guide here to install the drivers.
http://www.backtrack-linux.org/forum...ad.php?t=34469

[numediaweb]

For those that are having problems with the BCM4331 wifi card this is how I fixed it:
First: Enable the b43 drivers.
http://www.backtrack-linux.org/wiki/..._Backtrack5_r2
Second: Then you should be able to follow the guide here to install the drivers.
http://www.backtrack-linux.org/forum...ad.php?t=34469

Thanks man!

[gasound]

For those that are having problems with the BCM4331 wifi card this is how I fixed it:
First: Enable the b43 drivers.
http://www.backtrack-linux.org/wiki/..._Backtrack5_r2
Second: Then you should be able to follow the guide here to install the drivers.
http://www.backtrack-linux.org/forum...ad.php?t=34469

What if the second step doesn't work?

Look.

root@bt:~# service networking start
networking stop/waiting
root@bt:~# cd '/root/hybrid-portsrc_x86_64-v5_100_82_112'
root@bt:~/hybrid-portsrc_x86_64-v5_100_82_112# make clean
KBUILD_NOPEDANTIC=1 make -C /lib/modules/`uname -r`/build M=`pwd` clean
make[1]: Entering directory `/usr/src/linux-source-3.2.6'
Wireless Extension is the only possible API for this kernel version
Using Wireless Extension API
CLEAN /root/hybrid-portsrc_x86_64-v5_100_82_112/.tmp_versions
make[1]: Leaving directory `/usr/src/linux-source-3.2.6'
root@bt:~/hybrid-portsrc_x86_64-v5_100_82_112# make
KBUILD_NOPEDANTIC=1 make -C /lib/modules/`uname -r`/build M=`pwd`
make[1]: Entering directory `/usr/src/linux-source-3.2.6'
Wireless Extension is the only possible API for this kernel version
Using Wireless Extension API
LD /root/hybrid-portsrc_x86_64-v5_100_82_112/built-in.o
CC [M] /root/hybrid-portsrc_x86_64-v5_100_82_112/src/shared/linux_osl.o
CC [M] /root/hybrid-portsrc_x86_64-v5_100_82_112/src/wl/sys/wl_linux.o
/root/hybrid-portsrc_x86_64-v5_100_82_112/src/wl/sys/wl_linux.c:388: error: unknown field ‘ndo_set_multicast_list’ specified in initializer
/root/hybrid-portsrc_x86_64-v5_100_82_112/src/wl/sys/wl_linux.c:388: warning: initialization from incompatible pointer type
make[2]: *** [/root/hybrid-portsrc_x86_64-v5_100_82_112/src/wl/sys/wl_linux.o] Error 1
make[1]: *** [_module_/root/hybrid-portsrc_x86_64-v5_100_82_112] Error 2
make[1]: Leaving directory `/usr/src/linux-source-3.2.6'
make: *** [all] Error 2