How to set the ringtone of Huawei SMS?

Huawei mobile phone set SMS ringtone operation is as follows:

Open the information, and in the information list interface, click >? Settings? & gt？ Notification bells and vibrations. Click the notification bell. If it is a dual-card device, click the card? 1? Notification bell or notification card? 2? Notification ringtone: Set the system ringtone or saved music as information notification ringtone.