Why can't my mobile phone send messages? Full of love,

Sending failure is not necessarily related to not adding recipients. If the number you enter is not in the phone book, the system will automatically prompt you to add the recipient. I don't know, the news can't be sent out. Take my current t238 as an example. There is short message access in data communication. If GPRS is set, you can only send MMS, and if GSM is set, you can only send ordinary SMS. Switch back and forth, otherwise the transmission will fail, which is very troublesome. Of course, it doesn't matter when you receive it. That's what Mobile told me n years ago. I hope it helps you.