My Unicom card can receive other short messages, but I can't receive the verification code. What's the problem?

The failure to receive the verification code may be due to the following reasons:

1. Please check whether the mailbox is full first. If it is full, 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;

3. Test whether you can receive short messages sent by other numbers. If yes, check whether the mobile phone is equipped with communication software for shielding strange numbers, and cancel the shielding of short messages sent by Unicom operators;

4. After eliminating the above reasons, you can try to test whether it can be received in other places to see if it is the reason for the weak local signal;

If the above problems do not exist, you can contact the local labor 100 10 to deal with this problem.