Dell WiFi card issue on upgradation

[H.S.Rai]

I found that message posted on list was incomplete. So trying again.

On Mon, May 3, 2010 at 9:44 PM, H.S.Rai <hardeep.rai at gmail.com> wrote:
> Found problem while upgrading from 9.10 to 10.04 LTS. Before upgrade,
> I did update and upgrade for 9.10 as recommended step and found my
> wireless stop functioning. Anyway, I upgraded to 10.04 through wired
> connection, and now wish to bring back wireless. Please read below
> inline.
>
> On Tue, Nov 10, 2009 at 6:13 AM, H.S.Rai <hardeep.rai at gmail.com> wrote:
>> On newly purchases Dell Vostro 1520, I installed Ubuntu 9.10, and
>> found WiFi card problem.
>>
>> "Network controller: Broadcom Corporation BCM4312 802.11b/g (rev 01)"
>>
>> On searching Internet, got:
>>
>> http://jomcode.com/fadhil/?p=59
>
> Now this link is broken.
>
> F r o. m  ()  link https://help.ubuntu.com/community/WifiDocs/Driver/bcm43xx
>
> on doing " lspci -vnn | grep 14e4 " shows only wired, but not wireless.
>
> ===================
> output of above command:
> ====================
> 08:02.0 Ethernet controller [0200]: Broadcom Corporation NetXtreme
> BCM5703 Gigabit Ethernet [14e4:16c7] (rev 10)
>        Subsystem: Broadcom Corporation NetXtreme BCM5703 1000Base-T [14e4:0009]
> 1a:00.0 Ethernet controller [0200]: Broadcom Corporation NetXtreme
> BCM5721 Gigabit Ethernet PCI Express [14e4:1659] (rev 21)
> 1c:01.0 Ethernet controller [0200]: Broadcom Corporation NetXtreme
> BCM5703 Gigabit Ethernet [14e4:16c7] (rev 10)
>        Subsystem: Broadcom Corporation NetXtreme BCM5703 1000Base-T [14e4:0009]
> ======================
>
> Please advise, what to do?
>
> With regards,
>
> --
> H.S.Rai