https://qooah.com/2014/11/17/samsung-tizen-%e6%89%8b%e6%a9%9f%e7%8f%be%e8%ba%ab%e5%8d%b0%e5%ba%a6%e6%9b%b4%e5%a4%9a%e8%a6%8f%e6%a0%bc%e6%b5%81%e5%87%ba/