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my wireless is desabled in ubuntu and i can't to connect to wireless

vahid@kharazi:~$ rfkill list all
1: sony-wifi: Wireless LAN
    Soft blocked: no
    Hard blocked: no
2: sony-bluetooth: Bluetooth
    Soft blocked: yes
    Hard blocked: no
3: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no

iwconfig

br0       no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   Tx-Power=0 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:on

lo        no wireless extensions.

eth0      no wireless extensions.

ifconfig -a

br0       Link encap:Ethernet  HWaddr 54:42:49:01:45:32  
          inet addr:192.168.1.6  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::5642:49ff:fe01:4532/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:7271 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8226 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:5543099 (5.5 MB)  TX bytes:1327122 (1.3 MB)

eth0      Link encap:Ethernet  HWaddr 54:42:49:01:45:32  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:7281 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8222 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:5649770 (5.6 MB)  TX bytes:1326537 (1.3 MB)
          Interrupt:18 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:1687 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1687 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:629901 (629.9 KB)  TX bytes:629901 (629.9 KB)

wlan0     Link encap:Ethernet  HWaddr 2c:81:58:ff:37:56  
          BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
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Please add the output of iwconfig and ifconfig -a to your question. –  chaos Oct 16 '13 at 11:57
    
i added them @chaos –  2 8 Oct 16 '13 at 12:00
    
It all appears to be working perfectly fine. What do you mean "wireless is disabled"? All output in your question indicates otherwise. Please edit your question to include specific error messages or screenshots that indicate the exact symptoms of your issue. –  gertvdijk Oct 16 '13 at 12:15
    
Tx-Power=0 dBm your card has no power, perform a ifconfig wlan0 up please. and check again iwconfig for tx-power. –  chaos Oct 16 '13 at 12:23
    
You appear to have re-posted your question to add the new details? Please don't do that! Edit your current question instead! askubuntu.com/q/360001/88802 –  gertvdijk Oct 17 '13 at 21:16

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