https://qooah.com/2014/12/22/tizen-%e6%89%8b%e6%a9%9f-samsung-z1-%e5%a4%96%e8%a7%80%e5%9c%96%e9%85%8d%e5%82%99%e5%bf%83%e8%b7%b3%e6%b8%ac%e8%a9%a6%e5%85%83%e4%bb%b6/