How to recover the short message content in Unicom's mobile phone after it is accidentally deleted?

You can call the manual service desk for consultation. If you open the SMS safe function now (Sichuan Unicom has opened this service, it is estimated that it is also available in other places), you can see how long ago the information was. If you are satisfied, open it! You can also log in to Unicom's online business hall directly and try the SMS safe function. I saw all the messages sent and received in the last month when I tried before! However, I haven't used this function for several months. Please consult the local manual station directly and there should be an answer!