How does WeChat bind the phone number?

Select the bound mobile phone number, you need to verify the SMS, the system will send a text message to the bound mobile phone, enter the corresponding verification code to bind, as follows:

1, first When registering and logging in, you will be prompted to bind = "Start"; 2. After logging in to WeChat, select Find friends = "View Phone Address Book =" Start; 3. After logging in to WeChat, select option = "Settings =" Phone Address Book Match = "Start .

Can also be released after binding, unbind method: setting = "mobile phone address matching =" disabled, you need to use this function to restart the binding.