https://blog.wongcw.com/2021/03/06/2%e6%9c%88android%e6%89%8b%e6%a9%9f%e6%80%a7%e5%83%b9%e6%af%94%e6%a6%9c%ef%bc%9aredmi-k40%e5%85%a8%e5%a0%b4%e6%9c%80%e4%bd%b3/