https://blog.wongcw.com/2022/06/30/%e4%be%86%e7%9c%8b%e7%9c%8b%e9%80%99%e9%83%a8%e5%83%b9%e5%80%bc50%e8%90%ac%e7%be%8e%e5%85%83%e7%9a%84iphone-2g%e5%8e%9f%e5%9e%8b%e6%a9%9f/