I wrote a short message and turned it into a multimedia message. What should I do?

Take the Android phone as an example. The processing method of sending SMS to MMS by Android phone is as follows:

1. Check whether the "Subject Bar" is open in the SMS editing interface, and press the menu key to close it;

2. Enter the SMS settings to see if there is an option of "converting SMS to MMS" and close it;

3. Enter the SMS settings to see if there is an option of "Remind when SMS is converted into MMS" and turn it on;

Fourth, send long short messages through third-party software (search for short messages in any application market and choose to download, install and use them according to personal needs).