Black hair SMS will show success.

1. The SMS sent by the blacked number is not particularly displayed.

2. The black screen of the mobile phone is a mobile phone setting, not a number setting. After hacking, it is called rejection and SMS blocking.

3. Directly reject the incoming call with blacked-out number, and reply to busy tone, empty number, etc. For blacklisted short messages, they are directly blocked from entering the blocked folder and are not displayed, but the other party is fine.

Expand knowledge:

There are two kinds of short messages: one is text or digital information sent or received directly by users through mobile phones or other telecommunication terminals, and the number of characters that users can receive and send short messages at a time is 160 English or digital characters or 70 Chinese characters. One is MMS. Its biggest feature is that it supports multimedia functions and can transmit comprehensive content and information, including text, images, sounds, data and other multimedia formats.

According to the American science and technology news website Engadget,19921February 3, 992, Neil Papworth, a communication engineer, sent the first short message in human history. At that time, he wrote "Merry Christmas" on his computer and sent it to Richard Jarvis, an executive of British mobile operator Vodafone. Such a small beginning has gradually changed the way of communication and communication in human society.