Why can't Huawei mobile phone restore SMS to Xiaomi mobile phone?

The accounts are not interoperable, and the databases of Xiaomi and Huawei are not interoperable, so they cannot be restored across systems.

Huawei Technologies Co., Ltd., founded in 1987, is headquartered in Longgang District, Shenzhen City, Guangdong Province. Huawei is the world's leading provider of information and communication technology (ICT) solutions, focusing on the ICT field, adhering to steady operation, continuous innovation and open cooperation, building end-to-end solution advantages in the fields of telecom operators, enterprises, terminals and cloud computing, providing competitive ICT solutions, products and services for operators, corporate customers and consumers, and striving to realize the future information society and build a better fully connected world. In 20 13, Huawei became Ericsson, the largest telecom equipment supplier in the world, and ranked 3rd15th in Fortune Global 500. Huawei's products and solutions have been applied in more than 70 countries around the world, serving 45 of the world's top 50 operators and the global population of13.