https://qooah.com/2015/03/20/lg-%e7%a7%98%e5%af%86%e6%9c%83%e8%a6%8b-google-%e5%b7%a5%e7%a8%8b%e5%9c%98%e9%9a%8a-%e7%96%91%e6%b4%bd%e6%96%b0%e4%b8%80%e4%bb%a3-nexus-%e7%94%9f%e7%94%a2%e4%ba%8b%e5%ae%9c/