How to change the mobile phone number bound by QQ?

Can I modify and cancel after binding? Yes, you can. Edit the short message "QQ number and password" and send it to Mobile "1700 15" or Unicom "9777 15" (Guangdong Unicom users send it to 3777 15) to change the binding; Edit the short message "QXBD" and send it to Mobile "1700" or Unicom "9777 (Guangdong Unicom users send it to 3777)" to unbind it. Several special cases to solve the problem of mobile phone unbinding: a. Unbinding after losing the mobile phone card of Shenzhouxing users. Because the Shenzhouxing mobile phone card cannot confirm the valid identity of the user, we can only call our customer service number at present, and relevant personnel will handle this problem. B. The QQ mobile phone icon is still displayed after unbinding. At present, due to the network situation, it is rare that synchronization cannot be done immediately. If you still can't display the latest status after logging in again, we suggest you call our customer service phone directly, and the relevant personnel will solve this problem for you in time. C, the mobile phone sends a self-writing short message and then binds Q coins to pay. We can't choose the payment method at present. If there are pre-stored messages in your account, the number of corresponding messages will be deducted directly after sending. Therefore, it is recommended that you buy pre-stored SMS of commonly used QQ in bulk. One-time consumption, more concessions, more satisfaction >>d, the problem of charging for sending self-written SMS after binding Unicom and PHS. At present, after Unicom and PHS are bound, it is impossible to send self-written short messages through mobile phone/PHS payment. Only the bound mobile phone can send self-written SMS through mobile phone payment.