To save the space and to avoid the unnecessary filth in message box, it is advised to get the message box cleared, from time to time. If you want to get rid of the threaded messages, you may delete all the threaded messages in your message box of Android KitKat 4.4.2 phone. You may perform this by just one command.
Video
Instructions
Command Line: Messaging app > Settings button > Delete all threads.
1: Tap the ‘Messaging’ app to open the messaging app screen.
2: Tap the ‘Settings’ button, available on the bottom right corner of the messaging app screen. It will open up a drop-down menu.
3: In the drop-down menu, tap ‘ Delete all threads’.
4: It will open a prompt, warning you that it will delete all threads (conversations).
5: Tapping ‘OK’ will delete all the threaded messages.
6: See the message box is vacant.
That’s all!