Chatting and texting are forbidden.

There is no conflict between chatting and texting on iPhone. If your mobile phone has not escaped from prison, it is even more impossible that the so-called software is poisonous. If your SMS center number is correct, you can put your card on another mobile phone to see if you can receive and send SMS. If not, please call the operator to see if there is anything wrong with the operator. If you can, then see if your mobile phone has escaped from prison. If you have escaped from prison, please check whether the relevant plug-ins are installed. Some plug-ins may filter short messages, making it impossible to send and receive short messages. If it is a jailbreak machine, please check the settings carefully. Under normal circumstances, you don't need to manually set the SMS center number. You can try to restore the settings of your mobile phone to see if you can send short messages.

I hope my answer can help you ~