Troubleshooting - LG L21 Basic Manual

Troubleshooting

Before■you■assume■that■the■product■is■malfunctioning,■
check■the■following:
Symptom
Cannot turn on Is the battery pack charged?
power.
Is the battery pack attached
properly?
Are you pressing and holding
Cannot charge Is the battery pack attached
the battery. properly?
Is the microUSB connector of the
AC adapter or microUSB cable firmly
inserted into the desktop holder?
Is the AC adapter securely plugged
into an outlet?
Battery usage Do you often use the product in
time is short. places where
is displayed?
Is the battery pack at the end of its
life?
Cannot operate Are you operating with gloved
touch panel as hands?
intended.
Make sure you are not operating
with the tip of a fingernail or there is
no foreign object on the panel.
Cannot operate Is the screen lock set?
the keys/touch
Turn off the power and then turn it
panel.
on again.
70
Check■item Page
P.40
P.37
? P.43
P.37
P.41
P.41
(out of service area) －
P.22
P.45
P.45
P.25
P.43
Symptom
Screen response Screen response may be slowed
is slow when
down when a large amount of data
you tap on the is stored in the product or being
screen/press the transmitted between the product
keys. and a microSD memory card.
"No SIM card" is Is an au Micro IC Card (LTE)
displayed. inserted?
Cannot make Is an au Micro IC Card (LTE)
calls. inserted?
Did you enter the correct phone
number? (Did you enter the phone
number starting with the area
code?)
Is "Airplane mode" set?
Cannot receive Is reception good enough?
calls.
Are you out of service area?
Is "Airplane mode" set?
Is Call forwarding service set?
Display is dark. Is "Brightness" set to dark?
Cannot hear the Is the earpiece volume too low?
other party.
Are you covering the earpiece with
your ear? Place your ear hole to the
earpiece.
Cannot use NFC/ Has the battery run out?
Osaifu-Keitai ® .
Is "NFC/Osaifu-Keitai lock" set?
Do you hold the product so that the
FeliCa mark area is placed over the
reader?
Check■item Page
－
P.39
P.39
P.55
P.47
P.47
P.47
P.47
P.68
P.68
P.55
P.35
P.40
－
P.35