Why can't my mobile phone store the sent messages?

1. The mobile phone may not have this function; 2. When sending a short message, select Save and Send in the Send option. Your mobile phone does not have the function of storing sent SMS. The memory for storing short messages is full.

But judging from what you said, "I can't save the text messages I sent", I think I could have saved them before. Then try to see if there is something wrong with the settings or the memory is full. .......