How to send the hard disk back to the manufacturer for repair if it is broken?

First of all, look at the brand of the hard disk you use. Then, search for the word "official website" of a brand in Baidu, and find and log in to official website of this hard disk brand. After-sales service telephone numbers and information of after-sales service outlets all over the country can be found in official website. Call customer service to explain the hard disk damage, and the other party will provide you with the mailing address.