https://blog.wongcw.com/2020/11/20/%e8%98%8b%e6%9e%9c%e7%99%bc%e5%b8%83ios-14-2-1-%e4%bf%ae%e5%be%a9%e7%9f%ad%e4%bf%a1%e9%8c%af%e8%aa%a4%e5%92%8ciphone-12-mini%e9%8e%96%e5%b1%8f%e5%95%8f%e9%a1%8c/