You didn't turn on the Bluetooth on PC and phone.Turn on it to control your phone.
My desktop didn't come with the Bluetooth.
电脑控制手机的时候,电脑蓝牙没打开
电脑蓝牙打开步骤
电脑蓝牙的小图标打开了
手机上可以看到计算机了【Thinkpad-T440p-zwf】
无线网络
https://download.csdn.net/download/spencer_tseng/88845761