wireless - Atheros AR9285 hard blocked on toshiba nb305

My wireless card is hard blocked in any linux distro I install but there is no physical switch on netbook or on wifi card itself...I runned following commands :

inxi -N :

Network: Card-1: Atheros AR9285 Wireless Network Adapter (PCI-Express) driver: ath9k
Card-2: Realtek RTL8101E/RTL8102E PCI Express Fast Ethernet controller driver: r8169

sudo rfkill list:

0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: yes

any suggestions??