Q. What is the customer service number of Huawei in the United States? A. [Huawei Customer Service] Dear Huawei users, the information you need is as follows: Hotline information (United States) 8885482934 Monday to Sunday 07:00-21:00 (CST) (English/Spanish) 8885482934 Monday to Sunday 07:00-21:00 (CST) (English/Spanish)   Q. What is the difference between 4G and 5G?…