https://blog.wongcw.com/2020/06/30/%e8%80%81%e5%a4%96%e5%a4%a7%e8%b4%8aiphone-12%e7%b3%bb%e5%88%97%ef%bc%9a%e5%85%a8%e9%9d%a2%e5%b1%8f%e7%89%88iphone-4%e5%a4%96%e5%bd%a2%e5%8f%b2%e4%b8%8a%e6%9c%80%e4%bd%b3/