1. In Xiaomi official website: Enter Xiaomi official website, click "My Xiaomi" in the upper right corner of the page, select "After-sales Service" to enter the after-sales service center page, then select "Warranty Inquiry", enter the serial number or order number of the charging treasure, and fill in the verification code to inquire the warranty status of the charging treasure. If it is within the warranty period, it can be guaranteed free of charge. If it exceeds the warranty period, it needs to be paid at its own expense.
2. Contact Xiaomi customer service: call Xiaomi customer service phone or use Xiaomi official customer service WeChat for consultation, and provide information about charging treasure, such as serial number and order number, and the customer service staff will inquire and provide corresponding warranty service for you. If there is a non-human fault during the warranty period, you can enjoy the after-sales warranty service of Xiaomi. However, if the charging treasure is damaged or invalid during use, you need to bear the maintenance costs yourself.