ADB 连接手机，输入以下命令开关 WIFI 后即可：
adb shell settings put global captive_portal_http_url http://204.ustclug.org adb shell settings put global captive_portal_https_url https://204.ustclug.org
或使用小米 204 服务器:
http://connect.rom.miui.com/generate_204 https://connect.rom.miui.com/generate_204