163
Unable to
turn on the
phone
The battery
is used up.
Look at the
remaining
electricity
or
recharge.
SIM card is
damaged.
Contact your
network
service
operator.
SIM card is
not
properly
inserted.
Check
whether SIM card
is
properly
inserted.
SIM card
malfunction
There is a
feculency
substance
on
the
metal
surface of the
SIM card.
Wipe
the
metal touch part of
SIM
card
with
clean cloth.
Expired SIM
card
Contact your
network operator.
Unable to
connect with
the network
Outside the
GSM
service
area
Consult your
network operator
on
the
service
area.