Wifi not working in ubuntu for BCM43162 chip

lspci -vvnn | grep -A 9 Network
03:00.0 Network controller [0280]: Broadcom Corporation Device [14e4:43ae] (rev 02)
 Subsystem: Lenovo Device [17aa:0622]
 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0, Cache Line Size: 64 bytes
 Interrupt: pin A routed to IRQ 19
 Region 0: Memory at d1400000 (64-bit, non-prefetchable) [size=32K]
 Region 2: Memory at d1000000 (64-bit, non-prefetchable) [size=4M]
 Capabilities: <access denied>
 Kernel driver in use: wl

lsb_release -rd
Description: Ubuntu 16.04.1 LTS
Release: 16.04

uname -a
Linux rahul 4.4.0-31-generic #50-Ubuntu SMP Wed Jul 13 00:07:12 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

sudo dmidecode -s bios-version
C2CN19WW(V2.00)

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: bcmwl-kernel-source 6.30.223.248+bdcom-0ubuntu8
ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13
Uname: Linux 4.4.0-31-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Aug 11 11:45:33 2016
InstallationDate: Installed on 2016-05-17 (85 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
SourcePackage: bcmwl
UpgradeStatus: No upgrade log present (probably fresh install)