How to unblock a hard block that was block via hardware switch using rfkill?

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http://askubuntu.com – My wireless is hard-blocked by hardware switch and I want to unblock it using rfkill. Is there any other way to unblock a hard and soft block on the Wireless LAN? rfkill list 0: hp-wifi: Wireless LAN Soft blocked: yes Hard blocked: yes 1: phy0: Wireless LAN Soft blocked: no Hard blocked: yes This is stopping to use my wireless. How do I undo a hardware switch? (HowTos)