Hi, i also have the BCM4312 on my old 6720s. I used this kext (IO80211Family from 10.6.8 => latest update with BCM4312 ven/dev id) -> download here.
The card works, but is not recognized as AirPort (i think you need to change manually subvendor and subdevice id from linux => search 'rebrand broadcom airport' on google and see)
Thanks for the link. Confirmed that it works? (see below), although I guess it's an older kext. I had rebranded it using this article:http://www.osxlatitu...irport-extreme/
1. Note corrections here to the command to replace the OEM code (and my suggestion is to use Ubuntu 12.04--live CD would do it):http://forum.osxlati...nding-broadcom/
2. Modprobe doesn't actually give you any feedback. It just does what it's supposed to. Actually, there isn't a whole lot of feedback as to whether the ROM is extracted correctly--you just have to look for the ssb_sprom_copy file (i.e., the sprom file).
3. Ignore any warnings by Ubuntu to install drivers for the card if it detects the card when you boot--otherwise it will mess with the drivers that will allow you to extract the sprom.
I am on the lookout for a card that has BT and WiFi--and this card only has WiFi and I don't believe there is a separate BT--unless I turned it off somehow (there is no setting in the bios), and I ran lspci in Ubuntu, and it didn't see a BT device after I took the Intel Centrino Advanced out. More investigation necessary.
Here's what I see in System Profile report:
CoreWLAN: 3.0.1 (301.12)
CoreWLANKit: 2.0 (200.10)
Menu Extra: 8.0 (800.7)
configd plug-in: 8.3 (830.18)
System Information: 8.0 (800.1)
IO80211 Family: 3.2 (320.1)
WiFi Diagnostics: 1.1 (110.26)
AirPort Utility: 6.1 (610.31)
Card Type: AirPort Extreme (0x14E4, 0x4E)
Firmware Version: Broadcom BCM43xx 1.0 (18.104.22.168)
MAC Address: 00:22:5f:6d:94:fe
Country Code: US
Supported PHY Modes: 802.11 b/g
Supported Channels: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11
Wake On Wireless: Supported
Status: Off <----- Note: I turned it off because I don't have the antennas plugged in yet...
I doubt you will find a people to make you less than a bulk amount. These custom adapter designs won't be profitable unless you make these amounts. That being said... I'm down to buy a few myself. Soldering with coaxial cables can be finicky as there's a dielectric that's pretty important to signal transmission between the inside conductor and the shielding (ground in most instances). Just soldering might result in incorrect impedance matching and could lead to poorer signal ultimately. Anyway, let us know if you've got any progress with your companies.
I'm wondering if it's a better idea just to find antennas to replace the ones we have like what gsly did. Even when I buy my "new" card, I will probably look for an antenna matched to it unless research indicates that the ones in the Zenbook are usable with any card. Even then, it seems as if there is enough space to route BOTH sets of wires, so I may end up just keeping the Zenbook antennas and routing whatever antennas I end up getting through the same place.
On the UX32VD, the antennas are not in the screen, but rather the hinge area of the screen. They connect to the metal frame of the screen via the screws that hold the antenna assembly. I simply removed the Asus assembly and cannibalized an old Dell laptop antenna to put in it's place. Any yes, stripping those wires is delicate work!
How long were the antennas you pulled out from the Asus assembly?