Why can't my mobile phone receive the verification code of the online business hall of China Unicom?

If you can't receive the verification code, there may be the following reasons:

1. software conflicts, and some software firewalls or protection functions will also block some sent information accordingly;

2. You can change the machine or card to see if it is a hardware factor;

3. You can check whether the mailbox is full first. If it is full, please delete some information.

You can try to test whether it can be received in other places and see if it is the reason for the weak local signal.

5. Your number is currently in an abnormal state such as full shutdown and loss reporting;

6. Your mobile phone put the short message in the trash can, so you can check it in the short message trash can first;

7. Due to the large number of users, the speed of sending short messages is slow. I suggest you try again later.

If the above reasons still can't solve the problem, you can contact Unicom's manual customer service for processing.