Network problem: due to network delay or server communication delay, you may not receive verification code SMS. In this case, you can try to restart the network or change the network environment.
Mobile phone setting problem: Check whether the default SMS application of Huawei mobile phone is correct. If it is set to "Number Assistant", it will cause you to be unable to receive the verification code. Going to the Info application may help solve this problem.
SMS Interception Software: The installed SMS Interception Software may prevent receiving SMS with verification code. You can try to turn off the related functions of these softwares or uninstall and try again.
Mobile phone hardware or software problem: it is the hardware or software problem of the mobile phone itself, which needs further inspection or contact the official customer service for maintenance.