How to unbind QQ red diamond from mobile phone?

The red diamond indicates that the mobile phone is turned off, as shown in the following figure:

Mobile phone off red diamond:

Telecom mobile phone turns off the red diamond:

1. Please verify whether it is a red diamond-enabled pay phone before sending the SMS. Only a paid mobile phone with Red Diamond enabled can successfully turn off Red Diamond by sending SMS.

2. Pay attention to the unity of letters when sending text messages, and pay attention to the fact that there can be no spaces between letters, and there should be no text message signature after the text message;

3. If you still can't turn off the red diamond service opened by your mobile phone normally, you can contact the operator to solve the problem through manual service.