With the after-sales service, what is the delivery time of a device? A product which has been exchanged will be delivered within 7 working days (subject to available stocks). Related articles How long is the warranty on an exchanged product? My device's screen no longer responds. What should I do? My radiator does not generate any heat, what should I do? How long is the warranty on a repaired product? Within the framework of after-sales service, how long is the warranty for spare parts?