Broadcom 14E4:4315 not working after 10.7.4 update

[alex88]

Hi guys, please help me as tomorrow i'm going to work and i need wifi

 

Yesterday i've upgraded to 10.7.4 from 10.7.0, after upgrade i've replaced acpi and power management kext, then due wifi not working, i've replaced IO80211 kext, but i still see the wifi icon empty, it says "no wifi installed" but, when i go to system info (this one) i get

 

BCM4312 802.11b/g LP-PHY 14e4:4315

 

and in kext

 

AirPortBrcm43xx.kext 423.91.27 BCM4312 802.11b/g LP-PHY

 

so it seems to be loaded, in the kext file i also see the device id of the card. Just i don't see it in network settings.

 

Any idea?

 

I've also tried to change en0 to en4 in

/Library/Preferences/SystemConfiguration/NetworkInterfaces.plist

(en1 etc are already there) with no luck.