How to set the SMS of ZTE v880 and change the alarm sound?

Generally, Android phones have four kinds of ringtones that can be set: incoming call, short message, alarm clock and system. The specific setting is: 1. First open the memory card disk of Android phone, set a "media" folder in it, and then set an "audio" folder after opening it. 2. After opening the Audio folder, set the ringtone, notification, alarm clock and ui (system prompt) in it. 3. Then store the ringtones in these folders according to your own needs. 4. Open the Android phone, and you can choose it in the menu-Settings-Sound. The first hint: set the folder, put the ringtone to be set in the specified folder and restart the phone, then set it in the settings, and you can choose the ringtone you just put in ...! [Compilation of SMS ringtone settings-Enter SMS-Press menu key-Enter settings to set SMS ringtones]