Xiaomi K40 mobile phone has always had a short message prompt tone, but there is no information.

Because repeated SMS reminder is turned on, the operation method is as follows:

1. First unlock the phone and click Settings, as shown in the figure below.

2. Enter Settings and click Notify, as shown in the figure below.

3. Enter the mobile phone notification settings page. On the notification settings page, find and click the information, as shown in the figure below.

4. Enter the information notification settings page, and click Repeat Reminder, as shown in the figure below. 5. Enter the repeated reminder page. On the Repeat Reminder page, select the Never option and finish. Text messages will never remind you again.