Why can't I send and receive messages?

According to the information you provided, if you can't receive SMS or verification code, there are several reasons:

1 Your number is currently in an abnormal opening state, such as loss reporting due to downtime. I suggest you open this number and try again.

2 Your mobile phone has put the short message into the trash can, or the mobile phone security software has intercepted the short message, you can look in the short message trash can first or the software has intercepted it;

Hardware factors cause your mobile phone to receive short messages abnormally, so I suggest you change your mobile phone for detection;

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 problem does not exist, please contact the manual customer service where the number belongs to handle this problem.

If your mobile phone can't send short messages, you can try to restart or change your mobile phone for testing to see if the following conditions exist:

1 SMS center number is set incorrectly, please re-enter the correct SMS center number;

2 No signal or insufficient battery power;

3. Because the system is busy during the holiday short message sending peak period, it is suggested that you try again later or avoid the sending peak period;

4 The sending format is incorrect. If you send a short message to PHS users, you need to add the area code before the number;

5 SMS sending time exceeds 24 hours;

6. The mobile phone shields the short message sending function;

7 blacklisted by SMS;

The balance of number 8 is insufficient;

9 SMS Inbox and Outbox are full.

If the above reasons can't be solved, you can contact the manual customer service of the number attribution or go to Unicom's own business hall to confirm whether the SMS function is enabled and hand it over to the staff for handling.