How to change the ding-dong sound of mobile phone

The method of changing the sound of mobile phone is as follows:

Click the three-point icon to enter the mobile phone, and click the three-point icon above. Click Settings Click the settings option above. Click Mail Settings Click the mail settings option above.

Click Message Notification Settings. Click the message notification settings above.

Click on the system notification message Click on the system notification message below. Click Go to System Settings Notifications Click Go to System Settings Notifications above. Click the bell. Click on the ringtone below. Select the ringtone. Select the ringtone.