Binding refers to the situation that the learning machine and the parent's mobile phone are bound together. You need to solve it in two ways. One is to unbind by controlling the mobile phone, and the other is to unbind by the salesperson at the place of purchase.

Generally, the morning education machine will have an account security or account setting button in my settings. Generally, the mobile phone can be unbound by clicking, receiving the verification code or changing a different mobile phone number to achieve the goal.

If there is no such button in the settings of the morning education machine, you can change and unbind the mobile phone number on the mobile phone side, just receiving the verification code.

If both devices can't be solved, you need to go to a salesperson.