Samsung Galaxy J3 User Manual - Page 20
Turning the device on and off, Touchscreen
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Basics Turning the device on and off Press and hold the Power key for a few seconds to turn on the device. When you turn on your device for the first time or after performing a data reset, follow the onscreen instructions to set up your device. To turn off the device, press and hold the Power key, and then tap Power off. • If your device is frozen and unresponsive, press and hold the Power key and the Volume key down simultaneously for more than 7 seconds to restart it. • Follow all posted warnings and directions from authorised personnel in areas where the use of wireless devices is restricted, such as aeroplanes and hospitals. Touchscreen • Do not allow the touchscreen to come into contact with other electrical devices. Electrostatic discharges can cause the touchscreen to malfunction. • To avoid damaging the touchscreen, do not tap it with anything sharp or apply excessive pressure to it with your fingertips. • The device may not recognise touch inputs close to the edges of the screen, which are outside of the touch input area. • Leaving the touchscreen idle for extended periods may result in afterimages (screen burn-in) or ghosting. Turn off the touchscreen when you do not use the device. • It is recommended to use fingers when you use the touchscreen. 20