Why didn't you delete the message?

Delete operation, insufficient storage space, software problem.

1. Delete operation: someone accidentally deleted the short message on the mobile phone. Please check the trash can or delete the folder of your mobile phone to see if the message has been deleted by mistake.

2. Insufficient storage space: If the storage space of the mobile phone is full, the system will automatically delete some old SMS messages to make room. You can empty the cache of the mobile phone or delete some unnecessary files to free up the storage space.

3. Software problem: The mobile phone operating system or SMS application has failed, resulting in the disappearance of SMS. You can try to restart your phone or update the SMS application to solve the problem.