Xiaomi products are guaranteed nationwide, that is, after-sales maintenance can be carried out in any millet after-sales. After-sales is the official after-sales, just like in official website, Xiaomi mobile phones purchased in Pinduoduo can enjoy the official after-sales. There are both genuine and fake products in Pinduoduo, so be careful when buying. Try to choose a reputable merchant. If you buy fakes or encounter after-sales problems, you can contact the platform customer service to intervene.