https://blog.wongcw.com/2020/08/01/your-phone%e5%b0%87%e5%bc%95%e5%85%a5warm-up%e5%8a%9f%e8%83%bd%e5%b9%ab%e6%96%b0%e7%94%a8%e6%88%b6%e6%9b%b4%e5%bf%ab%e4%b8%8a%e6%89%8b/