Huawei Glory 20 can't receive SMS. What's the problem?

You can't receive SMS or verification code due to the following reasons:

First of all, you can check whether the mailbox is full, if so, please delete some information;

2. If it is still not received after deletion, you can change the machine or card to see if it is a hardware factor;

Thirdly, after eliminating the above reasons, we can try to test whether zd can be received in other places to see if it is the reason for the weak local signal.