Why can't the control of the device be turned on, even if it is turned on, it will be a blank page?

"Please check in the following ways:

       This is because all the setting pages and function pages (such as timing, countdown, scene and other functions) in the control panel of the device are based on cloud services. Therefore, if your network condition is poor, it will be slow or even unable to open normally;

        Please confirm that the network environment signal of the device is strong and stable.If the problem still exists, please provide your app version number and device ID, and we will help you find the problem as soon as possible. "