Why can't the mobile phone send short messages? I can't send it after receiving the text message. '

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;

2. No signal or low battery;

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

4. The other party's number is blacklisted;

5. Insufficient quantity balance;

6. SMS inbox and outbox are full.

If this is not the case, you can contact the local manual customer service for feedback.