Samsung flip phone short message content is hidden, how to display it?

Sorry, Samsung mobile phone doesn't have the function of hiding some contact messages for the time being. If your mobile phone supports the secure mailbox function, you can move some short messages to the secure mailbox to realize the hidden function. How to operate: Apply-Info-Menu Button-Move to Safe Mailbox-View the contact message that needs to be hidden (Note: some mobile phone versions support the safe mailbox function, but the safe mailbox function may be cancelled in the later system upgrade, and the information in the safe mailbox will be deleted after the upgrade. Please pay attention to backup.