Samsung A520DS, User Manual, Page: 37 / 167

Basics
37
Restarting the device
If your device is frozen and unresponsive, press and hold the Power key and the Volume
Down key simultaneously for more than 7 seconds to restart it.
Power key
Volume Down key
Controlling the 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.