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I know that you might think this question has been answered but I promise you that i have tried every single page in Google search but nothing worked.

I bought a ThinkPad T431s and I wiped out the Windows 8 and install windows 7 and now installed Ubuntu 13.04 kernel 3.8 I can get to the internet by cable but no wireless whatsoever can be found at all. The Bluetooth symbol is show up close to the network and clock on the panel top right.

I downloaded iwlwifi-6000g2b-ucode-18.168.6.1.tgz and copied the files into the correct directory, restarted my laptop but no good.

Here are some pages I visited but got nothing working from them Wireless with Intel Centrino Advanced-N 6235, and Can not get wireless card to even show up

and many others. and I even tried this installing this

wireless-iwlwifi-precise-dkms_3.6precise1sutton5_all.deb

I would really appreciate it if someone can help me getting the wireless working.

Thanks


Guys before you continue reading, MY PROBLEM WAS SOLVED. if you interested in the solution just skip all th commands and their output until you see the second dashed lines.

the output for this command sudo lspci -nn

00:00.0 Host bridge [0600]: Intel Corporation 3rd Gen Core processor DRAM Controller [8086:0154] (rev 09)
00:02.0 VGA compatible controller [0300]: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09)
00:14.0 USB controller [0c03]: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller [8086:1e31] (rev 04)
00:16.0 Communication controller [0780]: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 [8086:1e3a] (rev 04)
00:19.0 Ethernet controller [0200]: Intel Corporation 82579LM Gigabit Network Connection [8086:1502] (rev 04)
00:1a.0 USB controller [0c03]: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 [8086:1e2d] (rev 04)
00:1b.0 Audio device [0403]: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller [8086:1e20] (rev 04)
00:1c.0 PCI bridge [0604]: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 [8086:1e10] (rev c4)
00:1c.1 PCI bridge [0604]: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 [8086:1e12] (rev c4)
00:1d.0 USB controller [0c03]: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 [8086:1e26] (rev 04)
00:1f.0 ISA bridge [0601]: Intel Corporation QM77 Express Chipset LPC Controller [8086:1e55] (rev 04)
00:1f.2 SATA controller [0106]: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] [8086:1e03] (rev 04)
00:1f.3 SMBus [0c05]: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller [8086:1e22] (rev 04)
02:00.0 System peripheral [0880]: Ricoh Co Ltd MMC/SD Host Controller [1180:e822] (rev 07)
03:00.0 Network controller [0280]: Intel Corporation Centrino Advanced-N 6235 [8086:088f] (rev 24)

Output for lsusb

Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 147e:2020 Upek 
Bus 001 Device 004: ID 8087:07da Intel Corp. 
Bus 001 Device 005: ID 5986:026a Acer, Inc

output for sudo lshw --class X

Hardware Lister (lshw) - B.02.16
usage: lshw [-format] [-options ...]
       lshw -version
    -version        print program version (B.02.16)

format can be
    -html           output hardware tree as HTML
    -xml            output hardware tree as XML
    -short          output hardware paths`
    -businfo        output bus information`

options can be
    -class CLASS    only show a certain class of hardware
    -C CLASS        same as '-class CLASS'
    -c CLASS        same as '-class CLASS'
    -disable TEST   disable a test (like pci, isapnp, cpuid, etc. )
    -enable TEST    enable a test (like pci, isapnp, cpuid, etc. )
    -quiet          don't display status
    -sanitize       sanitize output (remove sensitive information like serial numbers, etc.)
    -numeric        output numeric IDs (for PCI, USB, etc.)

Output for sudo lshw -class network

  *-network               
       description: Ethernet interface
       product: 82579LM Gigabit Network Connection
       vendor: Intel Corporation
       physical id: 19
       bus info: pci@0000:00:19.0
       logical name: eth0
       version: 04
       serial: 3c:97:0e:b9:ab:46
       capacity: 1Gbit/s
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=2.1.4-k firmware=0.13-3 latency=0 link=no multicast=yes port=twisted pair
       resources: irq:41 memory:f1500000-f151ffff memory:f153b000-f153bfff ioport:4080(size=32)
  *-network
       description: Wireless interface
       product: Centrino Advanced-N 6235
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: wlan0
       version: 24
       serial: 08:d4:0c:04:71:f3
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwlwifi driverversion=3.8.0-30-generic firmware=18.168.6.1 ip=192.168.1.3 latency=0 link=yes multicast=yes wireless=IEEE 802.11abg
       resources: irq:45 memory:f0c00000-f0c01fff

Output for lspci

00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04)
00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4)
00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 (rev c4)
00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation QM77 Express Chipset LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04)
02:00.0 System peripheral: Ricoh Co Ltd MMC/SD Host Controller (rev 07)
03:00.0 Network controller: Intel Corporation Centrino Advanced-N 6235 (rev 24)

Output for rfkill list all

0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no
1: tpacpi_bluetooth_sw: Bluetooth
    Soft blocked: no
    Hard blocked: no
2: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no

I don't know exactly what happened but here is the last thing before it suddenly worked. I did copy the firmware to /lib/firmware but then the touchpad (mouse) for ThinkPad T431s is very sensitive and actually bad without Lenovo settings and synaptics driver So I decided to lunch Ubuntu Software Center and search for synaptics and I found Synaptic Package Manager and I installed it then I clicked on Mark All Upgrades then apply After downloading and installing the updates I restarted my laptop and then I clicked on the network beside the clock and I see the wireless networks showing up.

I hope someone can benefit from this.

share|improve this question
    
Welcome to Ask Ubuntu! Did you try sudo ifconfig wlan0 up first? Also, copying the driver inside directory is not the correct way to make it work. You sould read supplied manual carefully and thoughtful (this process is called "smoking manuals", you should know). –  Danatela Sep 10 '13 at 4:26
    
As I said I did go thought all pages related to this topic. the result of the command you just gave me is wlan0: ERROR while getting interface flags: No such device What should I do other than copying the files into the lib/firmware/ –  Shakash3obd Sep 10 '13 at 4:46
    
We need more hardware information to help you, can you look at this question and then edit your question adding the information. Also, please provide information about all steps you did. –  Danatela Sep 10 '13 at 4:51

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