Cool 8729 SMS does not show dialogue.

Do you want to enter a password when entering a short message or prompt to lock the short message when entering a short message? If you enter the SMS prompt password, then this password will be solved by customer service! If you operate a short message to prompt the lock, it will be easier. Select the locked mobile phone, and then click "Info" in the upper left corner of the screen, which has the function of locking/unlocking. I hope it will help you.