Yesterday i updated mu ubuntu 12.04 dual booted with windows on HP Envy-4 Ultrabook 1002tx. After the updates, the wifi stopped working suddenly, even though it was working perfectly fine before. It still is working in windows.
Here is the description of the ubuntu version
DISTRIB_ID=Ubuntu DISTRIB_RELEASE=12.04 DISTRIB_CODENAME=precise DISTRIB_DESCRIPTION="Ubuntu 12.04.2 LTS"
Following is the chip id
08:00.0 Network controller : Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller [14e4:4727] (rev 01)
I followed the following links, but none worked.
How to Install a Broadcom Wireless Driver (answer by KiLLeRfriend and Luis Alvarado)