Can I log off after QQ mobile phone is bound? For example, if I lose my mobile phone number, can I change it?

QQ mobile phone binding can be cancelled. How to unbind after changing the binding? Methods 1: The short message "QXBD" edited by mobile phone is sent to the service code: 106 1700 (mobile users), 106 1700 (Unicom users and Shandong users please send instructions to1). Please send instructions to10621700 for Hubei, Guangxi, Jiangsu, Fujian, Zhejiang, Heilongjiang, Guangdong, Shanghai, Shaanxi, Sichuan and Henan; Please send instructions to 1066 1700 for other communications. ), 1062 1700 (telecom and netcom users), can be unbound. Method 2: You can also log in to QQ client, select menu-> Wireless QQ, enter the binding related page, and select Unbind operation. Method 3: Log in to the binding page (/) and click the Unbind button to unbind. I forgot the original bound mobile phone number. How to change the binding? If you forget the original binding phone number, you will not be able to change the binding. You can try the following methods to unbind. Method 1: Enter the binding page () and log in the QQ number to be unbound; After logging in, you can see the bound mobile phone number (7 digits will be displayed). If you can recall the original bound mobile phone number according to these 7 digits, you can directly change the unbinding. Operation method 2: If the user still can't remember the original binding number, please log in to the customer service center (/) and fill in the complaint about the loss of QQ account. After the customer service center verifies the identity of the number, unbind it. (But the system will change a new password after the number appeal is passed. )