https://blog.wongcw.com/2020/10/24/%e9%9d%9eiphone-12%e7%94%a8%e6%88%b6%e5%bb%ba%e8%ad%b0%e5%88%a5%e8%b2%b7magsafe%e9%81%a9%e9%85%8d%e5%99%a8%e5%85%85%e9%9b%bb%e9%80%9f%e5%ba%a6%e6%85%a2%e5%88%b0%e8%ae%93%e4%bd%a0%e6%87%b7%e7%96%91/