https://blog.wongcw.com/2020/11/03/oppo-5g%e6%99%ba%e8%83%bd%e6%89%8b%e6%a9%9f%ef%bc%8c%e5%b8%b6%e6%9c%89%e5%b1%8f%e4%b8%8b%e6%94%9d%e5%83%8f%e9%a0%ad%e5%92%8c3-5%e6%af%ab%e7%b1%b3%e6%8f%92%e5%ad%94/