How to compile and send prank messages about mobile phone vulnerabilities?

It seems that it only works for fake mobile phones. For example, the code of this "crazy vibration" is:

BEGIN:IMELODY

Version: 1.2

Format: CLASS 1.0

Beat: 100

Melody: (Ledofledonbackoffbackovibeon @ 0)

END:IMELODY

Paste this code into Notepad, and then click File-Save As. In the dialog box that appears, the file name is "imy" (in quotation marks) and the save type is "All files". In this way, there is the document "Crazy Shock". The "imy" in the computer is actually a file with the suffix "imy" that can be recognized by the mobile phone.

There are many ways to transmit from computer to mobile phone, using Bluetooth or card reader. It says here that if you use a card reader, you can transfer the card from the computer to the card, insert the card into the mobile phone, and copy the IMY file to the "audio" file in the memory of the mobile phone through the file manager of the mobile phone. You must put it in this folder in the memory of your mobile phone. This folder in the card is useless. Press this option when writing new information, insert files, insert my music files, and then select this option to send.

Remember to mute your mobile phone before writing a short message. It doesn't matter what state it was before.

If you want to test yourself, you can also have the effect of speaking. As long as you play this file with the player, you don't have to try it with SMS.

I hope you can succeed in the exam.

Typing in cold weather is really tiring. . .