https://blog.wongcw.com/2018/11/21/helio-x40%ef%bc%9f%e8%81%af%e7%99%bc%e7%a7%91mt6779%e8%8a%af%e7%89%87%e7%8f%be%e8%ba%ab%e8%b7%91%e5%88%86%ef%bc%9a%e6%88%96%e6%98%af8%e6%a0%b8a75%e6%9e%b6%e6%a7%8b/