Oppo mobile phone will send text messages to parents after playing for a long time. Why can't you send it out?

Oppo mobile phone will send text messages to parents after playing for a long time.

1, SIM card problem. It will be abnormal if the mobile phone is in arrears or the SIM card is abnormal. You can try reinstalling the SIM card or replacing the SIM card.

2. The SMS center number is abnormal. Usually, the number of SMS center is different according to the attribution of our mobile phone number. Only when the SMS center is set up correctly can we send SMS normally.

Short message, short for SMS, refers to text or digital information sent or received directly by users through mobile phones or other telecommunication terminals. The number of characters that users can send and receive SMS at a time is 160 English or numeric characters or 70 Chinese characters.