Just as it happens in most smartphones with this design, to force a reboot is necessary to use the physical buttons on the terminal. For the S6, Samsung offers two ways to do this. The first and easiest is to maintain and hold the power button for about 10 seconds until the phone is turned off. If this method works not have to use a combination of several buttons. Pressing the power button, the start and the volume down while a warning screen appears and the phone will restart -the warning screen reminds us of the dangers of installing unofficial versions of the system (custom ROMs). With these simple steps we can restart the Samsung Galaxy S6 and the Galaxy S6 edge if they are locked and normal shutdown system does not work.