https://qooah.com/2011/12/15/motorola-%e5%b0%87%e6%8e%a8%e5%87%ba%e8%bf%b7%e4%bd%a0%e7%89%88%e4%b8%89%e9%98%b2%e6%89%8b%e6%a9%9f-defy-mini/