BBK vivoS6 10086 Why is the SMS locked?

Hello! Sorry, I don't quite understand what you mean. Do you mean that SMS is automatically locked?

There are two ways to set the SMS password:

① Enter the interface of SMS dialogue list, select the contact to be encrypted and press to pop up the dialog box, select "Encryption Dialogue" to pop up the password input dialog box, and enter a new password. (If the collection password has been set in the SMS settings, the Enter New Password dialog box will not pop up, and the encrypted password will be displayed directly. )

② After entering the SMS interface, press the left function key, select "Settings" to enter, and click the "Set Password" button. If a password has been set for a message before, after clicking the "Set Password" button, you need to enter the current password (the password of the previously set message) before you can enter a new password. After the modification is completed, the original information password will also be synchronized into a new password. Then press 1 to select the short message to be encrypted.