Need join to 13th channel via Airport

howoarang · #1 01-11-2010, 09:30 PM

Hi, I have problem with my Airport Extreme card to join on WLAN 13th channel (Europe wifi channels 1-13).
My AirPort Extreme Card is "Third-Party Wireless Card" 802.11b/g, chip Broadcom BCM4315 and it supports channels 1,2,3,4,5,6,7,8,9,10,11 only, but I need to join 13th channel.

Can somebody help me? I think, I need some modified driver.
THANKS!

Imkantus · #2 01-12-2010, 12:02 AM

Maybe try this:
http://mactip.blogspot.com/2008/12/c...rd-locale.html

howoarang · #3 01-12-2010, 10:28 AM

thanks for reply, but it doesnt resolve my problem. I dont know why...

look at this picture:

Imkantus · #4 01-12-2010, 12:53 PM

I could imagine this to be a limitation by Dell to make their prodcut suitable for outer european FCC rules. Does it work using an other OS? If not maybe ask the Dell support?

00010 · #5 01-12-2010, 03:29 PM

Where did you obtain the card, the card may not support 13 channels as a hardware limitation, which means that you may have a shot if you can flash new firmware to the card as an update, but that would probably require access to a Windoze box.

00010

howoarang · #6 01-12-2010, 04:08 PM

Hi, under Windows XP and Windows 7 card supports channels for Europe 1-13, only under MacOSX it doesnt support 13 channels.

00010 · #7 01-12-2010, 05:15 PM

Well you need to find a fix or patch then for your problem, but there has to be some way of enabling it, it may require alot of work though, I think if you modified the .kext file it may work, I have modified WIFI .kext files before to work with different device IDs for different revisions.

D.M

Imkantus · #8 01-12-2010, 07:08 PM

Weird thing is that my BCM4311 card (non-branded product) which I had orderd from the UK doesn't have this limit - at least not on 10.6.2

(And it's using them same Kernel Extension.)

00010 · #9 01-12-2010, 07:16 PM

Ok, then maby its the card itself, maby a firmware update on the card?

00010

howoarang · #10 01-12-2010, 10:21 PM

I do not know how to patch or edit the kext.
But, I must edit IO80211Familiy.kext to work my BCM4135 wifi card, because original kext includes these vendors IDs: 4311, 4312, 4313, 4318, 4319, 431a, 4320 etc... and my card ID is 4315 which is not included in original kext, so I simply added this ID to original IO80211Family.kext and now it is working, but only on channels 1-11.