Why can't mobile phone cards send text messages?

1. According to the information you provided, if your mobile phone can't send short messages, you can try to restart or replace your mobile phone for testing, and check whether the following conditions exist:

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

2. 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;

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

4 SMS sending time exceeds 24 hours;

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

6 blacklisted by SMS;

SMS Inbox and Outbox are full.

2. If this is not the case, please contact Unicom's manual customer service for details. The actual situation is subject to local policies.

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