Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you may not be able to execute some actions.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
白灯绿灯指示灯一直交替不停闪烁，一直不停断连接一直响USB连接的提示音，之前连接没问题
估计是固件坏了，重新烧录固件试试，如果不行可以寄回维修。