Why can't some mobile phone numbers send messages? What is the reason?

If the mobile phone can't send SMS, you can try to restart the mobile phone or change the card to check whether the following conditions exist:

1. Whether the SMS center number is set correctly, please enter the correct SMS center number;

Second, there is no signal or the mobile phone battery is insufficient;

Third, the mobile phone shields the short message sending function;

Fourth, the other party's number is blacklisted;

5. Insufficient quantity balance;

6. SMS inbox and outbox are full.

If you have any questions, please click /qALCW for consultation.