The opening status of Youbeitong is not opened.

Does the subject want to ask, "What should I do if the opening status of Youbeitong is not displayed?" ? Need to open the mobile phone number. Because you are not logged in, the Ubisoft display is not turned on. If the school newsletter service is not opened, you can only use the functions such as class group chat and class circle, and you can't receive the teacher's notice and SMS notice. You need to use your mobile phone number to open the school newsletter service.