Vivo mobile phone doesn't know how to send text messages

Enter "information", click the+icon in the upper right corner, then click the+sign in the upper right corner to add the recipient or enter the mobile phone number directly after the recipient, and finally enter the content of the short message to be sent.

If you still have more doubts, you can enter vivo official website-My-Online Customer Service-Enter labor and consult online customer service feedback.