Hello, when you need to log in to DingTalk after the phone is down, if the account has been opened for face registration before, you can log in to the account through face recognition;

If there are no SMS verification settings (the account has not been opened the account security protection before) You can also log in directly with your password.

[Change mobile phone number]: If the mobile phone number is changed, it is recommended to use the new mobile phone number to replace the bounding in time, because the password of the account needs to be sent to the mobile phone number in the binding.