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What is the reason why Unicom's mobile phone can't send short messages?

Unable to send SMS, you can check it in the following ways:

1. Check whether the mobile phone card has the function of sending short messages. It is recommended to turn on the SMS function first.

2. Whether the number of the SMS center is set correctly.

3. Check whether there is any problem with the mobile phone terminal, and change the machine and card for detection.

Tips:

The above answer takes Chongqing Unicom as an example. If the above problems do not exist, it is recommended to reissue the card in the business hall.