What should I do if I change my mobile phone and can't receive the verification code and forget my password?

Did you change your cell phone or your cell phone number? If you just changed your mobile phone number, you can still receive the verification code by SMS, unless you change your mobile phone number. If the mobile phone card has not been cancelled, you can receive the verification code or modify the password by installing the mobile phone card on your mobile phone. You can't get your mobile phone number back if it is cancelled. I just don't know if this software has secret protection. If there is a secret protection, you can remember. If not, there is no way. You can ask online customer service.