https://blog.wongcw.com/2021/01/24/%e8%98%8b%e6%9e%9c%e5%bc%b7%e8%aa%bfiphone-12%e7%b3%bb%e5%88%97%e5%92%8cmagsafe%e9%85%8d%e4%bb%b6%e6%9c%83%e5%b9%b2%e6%93%be%e9%86%ab%e7%99%82%e8%a8%ad%e5%82%99/