Unicom's 3g SMS can't be received.

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

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

2. If you still can't receive it after deletion, you can change your mobile phone or card to see if it is a mobile phone card or a mobile phone hardware factor;

3. 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 none of the above problems exist, it may be related to the network function. Please call 100 10 customer service to handle this problem.