How to make mobile phones unable to send short messages?

If it is a normal function machine, Nokia's Symbian system can modify the number of the information center, so it can only receive short messages, not send them.

If it is Android, you can delete your SMS program, so you can't send and receive SMS. If you just want to send short messages, you can use some security software, such as LBE 360, set program permissions to prevent short message programs from sending short messages, or you can manage the system's own permissions. For example, the MIUI system comes with rights management (software rights, not just ROOT rights).

If it's an iphone, I don't know. Diaosi has never used iPhone.

If it is windows phone, you can also change the information center number. Windows phone still used telecom for a few days, and the telecom company didn't provide information center number modification, so I don't know much about windows phone.

The common ones are function machines and Android. I hope I can help you. Thank you.