Will Xiaomi's mobile phone delivery record the serial number, Zhihu?

The subject wants to ask, "Will Xiaomi's mobile phone record the serial number?" Yes According to the inquiry of Xiaomi mobile phone in official website, after the user places an order to buy Xiaomi mobile phone in official website, the logistics will record the serial number of the mobile phone at the time of delivery to ensure the smooth after-sales work of the mobile phone. Serial number, also known as "machine code", is an article, which is generally the global unique identification code of electronic products.