networking - Laptop wireless card help? BCM4311

Okay I have an Acer Aspire 5517, it have bcm 4311 802 wireless card,Ubuntu 12.04.3 LTS

Network controller: Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01)

Here is the output of sudo lshw

  *-network
  description: Ethernet interface
  product: AR8132 Fast Ethernet
  vendor: Atheros Communications Inc.
  physical id: 0
  bus info: pci@0000:08:00.0
  logical name: eth0
  version: c0
  serial: 00:26:22:15:75:4d
  size: 100Mbit/s
  capacity: 100Mbit/s
  width: 64 bits
  clock: 33MHz
  capabilities: pm msi pciexpress vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation
  configuration: autonegotiation=on broadcast=yes driver=atl1c driverversion=1.0.1.1-NAPI duplex=full ip=192.168.1.101 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s
  resources: irq:43 memory:d1000000-d103ffff ioport:2000(size=128)

I tried this Installing Broadcom Wireless Drivers didn't work.
For chili55 I did this

    laptop@laptop-Aspire-5517:~$ lspci
    00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] RS780 Host Bridge
    00:01.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] RS780/RS880 PCI to PCI bridge (int gfx)
    00:04.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] RS780/RS880 PCI to PCI bridge (PCIE port 0)
    00:05.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] RS780/RS880 PCI to PCI bridge (PCIE port 1)
    00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 SATA Controller [AHCI mode]
    00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller
    00:12.1 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0 USB OHCI1 Controller
    00:12.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller
    00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 SMBus Controller (rev 3c)
    00:14.1 IDE interface: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 IDE Controller
    00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 Azalia (Intel HDA)
    00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 LPC host controller
    00:14.4 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 PCI to PCI Bridge
    00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
    00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] Address Map
    00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] DRAM Controller
    00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
    01:05.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RS780M [Mobility Radeon HD 3200]
    02:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01)
    08:00.0 Ethernet controller: Qualcomm Atheros AR8132 Fast Ethernet (rev c0)
    $sudo apt-get remove --purge bcmwl-kernel-source
    E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable)
    E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?

I am assuming, although you have been unable to confirm it, that this command:

lspci -nn

...shows your wireless device as 14e4:4315. If that is not true, please post the result. If it is true, please get a temporary wired ethernet connection and do:

sudo apt-get remove --purge bcmwl-kernel-source

If it is not installed, that's fine, just proceed with the next steps:

sudo apt-get install firmware-b43-lpphy-installer

Reboot and tell us if your wireless is working as expected.