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Problem
Shortened stand-
by time
You cannot
switch your phone
on.
SIM card error
Unable to con-
nect to the net-
work.
You cannot an-
swer incoming
calls.
Possible causes
The standby time is related to
your service provider system
configuration. The same
phone used with different
service providers' systems
will not provide exactly the
same length of standby time.
The battery is depleted. In
high-temperature environ-
ments, battery life will be
shortened.
If you are not able to connect
to the network, the phone will
continue to send out signals
as it attempts to locate a base
station. Doing so consumes
battery power and will conse-
quently shorten standby time.
Battery power has been de-
pleted.
SIM card malfunction or
damage.
SIM card inserted improper-
ly.
Debris on the SIM card con-
tacts.
SIM card invalid.
You are not within the net-
work's service area.
Poor signal.
You have activated call bar-
rings.
Possible solution
If you are located in an area where signalling
is weak, temporarily switch off the phone.
Use a new battery.
Change your location to one where the net-
work is accessible, or temporarily turn off
your phone.
Recharge the phone's battery.
Take the SIM card to your service provider
for testing.
Insert the SIM card properly.
Use a soft, dry cloth to clean the SIM card
contacts.
Contact your service provider.
Check the service area with your service pro-
vider.
Move to an open space, or if you are inside a
building, move closer to a window.
Settings
Security
Go to
>
calls
, and then select
Barrings
>
>
Clear all
.
71
All
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