Oppor9plus, why can't I send text messages regularly?

System problems, you can try to restart the phone, give it a try.

Enter the address book interface, switch to the information bar, and click the "New Information" button in the upper right corner.

Create a new message, enter the name or number of the recipient, or click on the upper right corner to add the recipient, and then edit the message content.

Click the "lower triangle" symbol in the lower left corner to find the "timed SMS" icon.

Finally, after editing the "Date and Time of Sending" of the message, click "Save".

You can find "Timed SMS" from the Personal Center, and then create, edit or delete existing Timed SMS.