https://blog.wongcw.com/2020/10/15/iphone-12%e7%99%bc%e5%b8%83%e5%be%8c%e8%88%8a%e6%ac%be%e7%b4%9b%e7%b4%9b%e9%99%8d%e5%83%b9iphone-xr%e5%b7%b2%e4%b8%8d%e5%88%b03800/