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Date:      Tue, 21 Jun 2011 10:33:22 +0800
From:      Adrian Chadd <adrian@freebsd.org>
To:        Warner Losh <imp@bsdimp.com>
Cc:        freebsd-mobile@freebsd.org, Maciej Milewski <milu@dat.pl>, Kevin Oberman <oberman@es.net>
Subject:   Re: Well supported wireless card for Lenovo T520
Message-ID:  <BANLkTinJpVDtPE37umtVdJ9hqf0biLLA5A@mail.gmail.com>
In-Reply-To: <8CE1BDDB-BC80-4C31-AC6F-EA99D94DA9AE@bsdimp.com>
References:  <20110618034432.634C01CC0B@ptavv.es.net> <4DFDE8A0.90208@FreeBSD.org> <201106191624.46574.milu@dat.pl> <8CE1BDDB-BC80-4C31-AC6F-EA99D94DA9AE@bsdimp.com>

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FYI, There's documentation and code out there for doing this to the
pre-11n NICs. This hasn't been done for the 11n NICs.


Adrian

On 20 June 2011 00:13, Warner Losh <imp@bsdimp.com> wrote:
>
> On Jun 19, 2011, at 8:24 AM, Maciej Milewski wrote:
>
>> On Sunday 19 of June 2011 14:16:32 John Baldwin wrote:
>>> You might want to make sure that your laptop will accept a different
>>> wireless adapter. =A0I tried to replace the Broadcom WIFI adapter in an=
 HP
>>> netbook and the system refused to POST with an Atheros WIFI adapter.
>>> Apparently the BIOS would check the PCI ID of the adapter and only
>>> booted if it was the Broadcom adapter. =A0(The message it output during
>>> POST actually said "restore valid WIFI nic" or some such.) =A0I resorte=
d
>>> to using ndis(4) (though it looks like the Linux equivalent of bwn(4)
>>> supports my adapter now, so maybe someday I'll get to use bwn(4)).
>>
>> In such case there are options to find a card which was made specific to
>> manufacturer or find the patched bios(or do this by self but that may be=
 very
>> dangerous). I had such situation and went the whitelist way with my Leno=
vo
>> laptop and I have no more problem with incompatible wireless(wwan and wl=
an)
>> devices. The two computer manufacturers who are doing such security of t=
heir
>> profit are HP and Lenovo. I don't know if others are doing that too.
>
> The other option is to change the ID in the BIOS (hardish) or get a ather=
os card that you can change the ID for (less hard: google is your friend eh=
re).
>
> Warner
>
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>



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