Contact customer service to send back the machine, and the machine will be inspected after receiving it. After the after-sales inspection, if it is repaired under warranty, it will directly enter the repair operation process; after the after-sales inspection, if it is repaired outside the warranty (including but not limited to man-made damage, water ingress, breakage, hardware changes, etc.), after-sales will contact customer service, by After the customer service contacts the user to make up the cost of the relevant accessories, it will enter the maintenance operation process. It will be sent back directly after the repair is completed.