What's the matter that Lenovo's mobile phone can't send messages?

Lenovo's mobile phone can't send text messages The suggestions are as follows:

1. Restart the phone and verify whether the reception is normal;

2. Verify whether the mobile phone is in arrears;

3. Restore the default SMS settings and verify the SMS center number;

4. Verify whether the third-party SMS software is uninstalled;

5. Try to change the card in the network environment;

6, backup data to prevent data loss, restore the factory settings.

If it is invalid, you can contact the after-sales site inspection.