What short message will make the other party's mobile phone crash?

The core part of "crash message" is imy file, which is usually a hidden music score. Different mobile phones will have different reactions when they encounter this file, such as vibration, black screen, flashing frequency and even crash. It is rumored that shanzhai mobile phones and low-end mobile phones may crash because they cannot recognize this file.

"Crash SMS" doesn't really crash the cottage.

As for the saying that "crash SMS" makes the mobile phone with MTK chip crash, this paper reveals to reporters from the technical level that "crash SMS" is an effect of inserting spaces, vibrations, notes, flashing frequency, etc. into ordinary text information, and when the mobile phone reads SMS, it will have the same effect as "crash SMS".

It is understood that imelodyringtoneformat is abbreviated as imy format. It is an audio format proposed by Ericsson in 2000, which can insert spaces, vibrations, music and other effects, but not many mobile phones support this file format for playing and ringing.

IMY is one of the general MMS file formats stipulated by China Mobile, but not many mobile phones support this file format for playing and ringing. It also has the characteristics of small occupied space and easy editing, so it was once used as the ringtone standard by EMS (Enhanced Short Message).

IMY is a monophonic format (non-chord), and you can write notes directly on your mobile phone.

According to IMY format grammar, the short message you usually receive is a flashing vibration code:

(ledoff ledon，backoff backon，vibeon，@0)

[Switch LED (flashing), switch background light (flashing), turn on vibration], repeat indefinitely.

IMY basic format analysis:

BEGIN:IMELODY

Version:< Version & gt

Format:< format & gt

[Composer: < composer _ name & gt]

Melody:< Melody & gt

End: IMELODY

Detailed explanation of variables:

( 1)& lt； Version & gt: Version number. 1.0/ 1.2

(2)& lt； Format & gt: format number. The value is CLASS 1.0|CLASS2.0.

(3)& lt； Composer _ name & gt: author's name.

(4)& lt； Beat & gt: rhythm. Values range from 25 to 900bpm (beats per minute). The greater the rhythm, the faster the speed. The default value is 120.

(5)& lt； Melody & gt: Melody string

& ltled & gt:led special effects. Lajdorf | Lai Dong

& ltvibe & gt: vibration special effects. " vibeon" | "vibeoff "

& lt repeat & gt: repeat special effects. "("+& lt； Melody & gt+"@ n)"; N takes a value from 0 to infinity.

Imy files can't be written by ordinary mobile phones, but can be written by computers, and then transmitted to mobile phones through infrared rays, Bluetooth or data cables. Imy files can achieve mute, vibration and other effects by writing programs.

"The mobile phone using MediaTek chip was not transmitted by the outside world and the instructions in the' crash message' were executed, which led to the mobile phone being recruited, violently shocked, black screen and restarted. It is because of the long-term vibration effect inserted in the' crash news' that there will be a severe earthquake and a false crash. "

MediaTek said this phenomenon can be avoided.

Why does this happen only in mobile phones with MTK chips, but not in mobile phones of well-known manufacturers such as Nokia and Samsung? At present, there are very few mobile phones supporting imy audio file format, and internationally renowned manufacturers such as Nokia and Samsung have developed their own audio file formats one after another, and turned off the function of identifying imy files, so Nokia and Samsung will not have this fake crash phenomenon.

"Of course, this function can also be turned off, so that this phenomenon can be avoided." Added.

Crash SMS code

Crash SMS is a kind of mobile phone crash after editing notes for the other party, as long as the reason may be that the mobile phone can't recognize the notes that the other party will send, and this kind of SMS is the most harmful to domestic mobile phones and low-priced mobile phones. The incidence of mobile phones above 2000 yuan is very small.

The following is the introduction of SMS and the writing of SMS:

In fact, that kind of short message is only effective for the "ringing" mode of mobile phones. It won't work if the mobile phone is set to vibrate. You can watch it with your heart.

By the way, when editing a short message, you should first set the mobile phone to vibrate, otherwise you can't insert the ringtone.

Crash code

BEGIN:IMELODY

Version: 1.2

Format: CLASS 1.0

Beat: 100

MELODY:(ledoffledonbackoffbackovibeon @ 0)

End: IMELODY

Black screen code

BEGIN:IMELODY

Beat: 1200

Melody: (ledoffbackoffvibeoffr5 ledoffbackoffvibeoffr5 @ 600)

End: IMELODY

Keep shaking

BEGIN:IMELODY

Version: 1.2

Format: CLASS 1.0

Beat: 100

MELODY:(ledoffledonbackoffbackovibeon @ 0)

End: IMELODY

ring

BEGIN:IMELODY

Version: 1.2

Format: CLASS 1.0

Beat: 200

Melody: (ledoffbackoffvibeonr5vibeoffledonbbackonr5 @ 200)

End: IMELODY

``

Put these codes in notepad, and just change the extension to imy format when saving.

But put those ringtones in imy format in the audio folder in the phone memory. Only in this way can we get it from the broadcast object.