Huawei mate9 SMS suddenly stopped prompting. Where is the setting not in place? I can't find it.

Please exit the information application and check whether there is a sound prompt when you receive the short message (at present, the native design of Android: in the interface of viewing the details of short message conversation information, if the contact sends a short message, there will be no ringing prompt).

Please confirm whether to turn on the ringtone volume (press the phone side button to increase the phone volume).

Please check whether the SMS tone setting switch is turned on.

EMUI 4。 X: Information? & gt？ Menu? & gt？ Settings? & gt？ Select the ringtone and check if none is selected.

EMUI 5。 X & amp8. X: Information? & gt？ More? & gt？ Settings? & gt？ Notify the bell and vibration, and check whether there is no choice.

EMUI 9。 X & Magic UI 2.0: Information? & gt？ & gt three points in the upper right corner > Settings >? & gt？ Notify the bell and vibration, and check whether there is no choice.

Please check whether the "Do Not Disturb" function is turned on.

EMUI 4。 X & ampEMUI 5。 X: input settings? & gt？ Do not disturb, turn off the Do Not Disturb function.

EMUI 8。 X/9。 X & Magic UI 2.0: Enter Settings? & gt？ Sound? & gt？ Do not disturb, turn off the Do Not Disturb function.

Please check whether the allow notification is turned on.

EMUI 4。 X: settings? & gt？ Notification and status bar? & gt？ Notification center? & gt？ Information to see if the permission notification is turned on.

EMUI 5。 X: settings? & gt？ Notification and status bar? & gt？ Notification management? & gt？ Information to see if the permission notification is turned on.

EMUI 8。 X: settings? & gt？ Applications and notifications? & gt？ Notification management? & gt？ Information to see if the permission notification is turned on.

EMUI 9。 X & Magic UI 2.0: Settings > Applications > Application Management > Information > Notification Management > Allow Notification, and see if Allow Notification is turned on.

If it has been set to ON, please try to turn it off before turning it on.

If none of the above methods can be solved, please open:

EMUI 4。 X & ampEMUI 5。 X: settings > application management > more > show system processes.

EMUI 8。 X: settings > applications and notifications > application management > more > show system processes.

EMUI 9。 X & ampMagic UI 2.0: Settings > Applications > Application Management > More > Show System Processes.

Find information > store > clear the cache, and restart the phone after clearing the cache.

If the above operation cannot solve your problem, please back up the data and restore the factory settings.

If the above methods fail to solve your problem, please back up important data in advance and bring the equipment invoice to Huawei customer service center for testing and processing.