How to solve the SMS verification account in iPhone after changing the mobile phone number?

1, go to Settings->; Information, cancel Apple ID, and close iMessage.

2. enter "settings"->; "FaceTime", exit the Apple ID login and close FaceTime.

3. enter "settings"->; ITunes & App Store ",exit the Apple ID login.

4. Turn it off. Wait 20 seconds before opening it.

5. After booting, enter GM-& gt；; Restore and perform the "Reset Network Settings" operation.

6. enter "settings"->; "Message", open iMessage, close iMessage again when waiting for activation, and repeat the operation until "iMessage messages can be sent between iPhone, iPad, iPod touch and Mac" appears.

7. Turn it off again. Wait 20 seconds, and then open it.

8. After booting, enter "General" again-> Restore performs the operation of Restore Network Settings.

9. After restoring the network, connect to WiFi.

10, enter the App Store and log in with Apple ID.

1 1, enter "Settings"->; "FaceTime", when you open FaceTime, a prompt of "Activating" will appear, and you will enter the next step.

12, enter "Settings"->; Information, open iMessage, and log in with Apple ID.

13, after Apple ID successfully logged in, iMessage successfully bound the new mobile phone number.