Samsung GT-9197 User Manual

Getting started18Holding the deviceDo not cover the antenna area with your hands or other objects. This may cause connectivityproblems or drain the battery.Locking and unlocking the deviceWhen not in use, lock the device to prevent unwanted operation. Pressing the Power buttonturns off the screen and puts the device into lock mode. The device automatically gets lockedif it is not used for a specified period.To unlock the device, press the Power button or the Home button and flick your finger in anydirection within the unlock screen area at the lower part of the screen.Adjusting the volumePress the Volume button up or down to adjust the ringtone volume, or to adjust the soundvolume when playing music or video.Switching to silent modeUse one of the following methods:• Press and hold the Volume button down until it switches to silent mode.• Press and hold the Power button, and then tap Mute or Vibrate.• Open the notifications panel at the top of the screen, and then tap Sound or Vibrate.