Oppo SMS has no prompt tone.

Processing method of mobile phone receiving silent information;

1. Check whether the mute mode is turned on: "Settings > Sound and Vibration > Silent Mode On" and turn off the mute function.

2. whether to set the reminder bell to none: "settings > sound and vibration > message bell", just set the message reminder bell according to actual needs.

3. Check whether the phone has turned on the Do Not Disturb mode: "Settings > (Sound and Vibration) > Turn on the Do Not Disturb mode" and turn off the Do Not Disturb function.

4. whether to turn off information notification in the mobile phone information settings: "settings > notification and status bar > (notification management) > information", just turn on "allow notification" and "ringtone" according to actual needs.

After the above method is checked, the message received by the mobile phone still has no sound, which may be the following functions:

1. Confirm whether unimportant notification is set: "Set >；; Notification and status bar > (notification management) > information > information notification (system mute channel) > set as unimportant notification ",just turn off this function.

2. check whether the phone is turned on: "settings > Breeno) > driving mode (Breeno driving) > undisturbed driving", just turn off this function.

3. Check whether sleep mode or concentration mode (meditation mode) is turned on, and turn off this function.