https://qooah.com/2012/02/02/htc-%e7%9a%84-android%e6%89%8b%e6%a9%9f%e7%99%bc%e7%8f%be%e6%bc%8f%e6%b4%9e%e6%88%96%e6%b4%a9%e9%9c%b2-wi-fi-%e5%af%86%e7%a2%bc/