Users need to check whether the mobile phone is in a state of vibration or mute reminder. If so, they need to pull down the control center to cancel the vibration or mute reminder, and then they can receive the message from Tik Tok. The tone may not open, so you need to open the Tik Tok app and log in to your account. In the lower right corner of Tik Tok homepage, click I to enter Tik Tok Personal Center, click the three bar icons in the upper right corner, click Settings in the open list, enter the settings page, click Notification Settings, and open the external reminder of private message application and the internal banner reminder of private message application.