https://qooah.com/2012/09/11/cyanogenmod-%e5%b0%87%e6%8e%a8%e5%87%ba-m-%e7%b3%bb%e5%88%97-%e5%ae%9a%e4%bd%8d%e9%ab%98%e5%93%81%e8%b3%aa-rom/