User's Manual

Appendix
74
The touchscr
een responds slowly or improperly
•
If you a
ttach a protective cover or optional accessories to the touchscreen, the
touchscreen may not function properly.
•
If you ar
e wearing gloves, if your hands are not clean while touching the touchscreen,
or if you tap the screen with sharp objects or your fingertips, the touchscreen may
malfunction.
•
The touchscr
een may malfunction in humid conditions or when exposed to water.
•
Restart y
our device to clear any temporary software bugs.
•
Ensure that your device software is updated to the latest version.
•
If the touchscr
een is scratched or damaged, visit a Samsung Service Centre.
Your devic
e freezes or has fatal errors
If your devic
e freezes or hangs, you may need to close apps or turn off the device and turn
it on again. 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.
If this does not solve the problem, perform a factory data reset. On the Apps screen,
tap
S
ettings
→
R
eset
→
F
ac
t
ory data reset
→
RESE
T DE
VICE
→
DELE
TE ALL
. B
ef
or
e
performing the factory data reset, remember to make backup copies of all important data
stored in the device.
If the problem is still not resolved, contact a Samsung Service Centre.
Calls are not c
onnected
•
Ensure that y
ou have accessed the right cellular network.
•
Ensure that y
ou have not set call barring for the phone number you are dialling.
•
Ensure that y
ou have not set call barring for the incoming phone number.
Others cannot hear you speak
ing on a call
•
Ensure that you are not covering the built-in microphone.
•
Ensure that the micr
ophone is close to your mouth.
•
If using a headset, ensur
e that it is properly connected.