The number received by the text message became music notation.

Turn on multimedia → make your own ringtone. Then edit one: press 8 to insert a vibrating note, then enter several notes at will, such as 1234 1234345345, and then save. Now start sending SMS, and select Insert Object → My Ringtone. Then find the ringtone you just made up and confirm it. Then save the message and preview it. How's it going?

If the text message keeps vibrating. That is a program written by a computer, which only applies to mobile phones on MTK platform. Now MTK platform is commonly used in shanzhai.

Connect the mobile phone to the PC with a data cable, open the storage directory of the mobile phone and find a similar audio folder. Generally edited "self-edited ringtones" are stored here and saved as *. My papers. Open it with Notepad, and you will see its main format:

BEGIN:IMELOPY

Beat://Execution parameter (quantity)

MELODY:// lighting and vibration control script

End: IMELODY

This kind of short message note takes advantage of the short message insertion sound function introduced by Ericsson in 2000. Now this function has become popular, because notes can control mobile phones with ringtone mode (invalid for mobile phones with vibration mode; It may also have an effect on branded mobile phones, such as Nokia and moto.

There is also a black screen:

BEGIN:IMELODY

Beat: 1200

Melody: (ledoffbackoffvibeoffr5 ledoffbackoffvibeoffr5 @ 600)

End: IMELODY

Just copy the above text and save it as. My papers. Try to put it in and out of text messages. Then send it out, and someone else's mobile phone will have a black screen or keep shaking. Of course, this kind of short message is only for mobile phones on MTK platform, not just for shanzhai phones, because most shanzhai phones use MTK platform to save costs, so this loophole will appear.