Solution:
Before making an appointment, please confirm whether the product panel clock is consistent with Beijing time (if the time is wrong, you can synchronize after networking, or press "make an appointment" for a long time to enter the time adjustment mode and press "hour" and "minute" to adjust).After that, make a reservation according to the instructions. If the reservation is successful, the "reservation" light will be on.If still cannot work, please contact customer service and they will arrange engineers door detection processing
