Dear User, Sorry for the inconvenience.It might be the manbufacturer didn't unbind the device after the test.The camera is a strong binding device and can only be bound by one account at the same time. If it is bound to another account of your own, you can log in to your original account to unbind, and then bind your new account. If you haven't performed the binding operation, we don't have permission to unbind it for you. It is recommended that you consult the after-sales of the product, that is, the customer service or person in charge of the purchase channel, and I believe they will give you a satisfactory answer. Thank you for your support and understanding.