In the settings of the mobile phone, the options and settings of sound and vibration can be used to set the original system prompt tone of the mobile phone or your favorite prompt tone according to the stored files, as follows:

1. Create a new folder named "notifications" in the root directory of the mobile phone, and add music to the "notifications" folder. Take the mobile phone operation as an example, please add the audio file format supported by the mobile phone.

2. click the phone setup program.

3. enter the mobile phone setup program, select "sound and vibration" and "ringtone". at this time, the prompt sound is the one that comes with the mobile phone.

4. After entering, you can see the added audio file and select it as the information prompt.