https://blog.wongcw.com/2020/01/15/iphone-9-12%e5%85%a8%e7%b3%bb%e9%85%8d%e7%bd%ae%e6%9b%9d%e5%85%89%ef%bc%9aa14-6gb-%e4%b8%89%e6%94%9d-5g/