The SMS set-top box automatically cancels the setting.

In this case, the automatic setting function should be set.

Click on the picture or information item that you want to cancel topping, and hold down the short message that we want to topping with your finger for a long time. That short message will be selected, and click "Topping" in the bottom menu bar. After topping, the message will run to the front of all short messages. In the first position, there is a small red triangle sign in the upper right corner of the short message. If one day we feel that the message is no longer important and we don't need to set the top, we can hold down the selected short message and click the "Cancel Setting the Top" button in the menu bar below.

You should have set the setting key on your mobile phone wrong. For details, you can ask the relevant customer service consultation of Vipshop.