[kubuntu] AR9485 Wireless Network Adapter not working

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http://ubuntuforums.org – Hi.. I purchased a new HP Laptop (HP 2000 series). I have installed Kubuntu 12.10 ,but I am unable to use wifi. After pressing F12(wifi switch) ,I got the following info from sudo rfkill list all: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: yes 1: hp-wifi: Wireless LAN Soft blocked: yes Hard blocked: no 2: hp-bluetooth: Bluetooth Soft blocked: yes Hard blocked: no The information showed by sudo lshw -class network command is: *-network DISABLED description: Wireless interface product: AR9485 Wireless Network Adap (Hardware)