Siemens AP75 User Manual page 121

Siemens ap75: user guide
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Problem
Shortened
standby time
You
cannot
switch
your
phone on.
SIM card
error
Unable to
connect to the
network.
102
Troubleshooting
Possible cause
The standby time is related
to your network operator's
system configuration. The
same
phone
different network operators'
systems will not provide
exactly the same length of
standby time.
The battery is depleted. In
high-temperature
environments, 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
consequently
shorten standby time.
Battery power has been
depleted.
SIM card malfunction or
damage.
SIM
card
improperly.
Debris on the SIM card
contacts.
SIM card invalid.
You are not within the
network's service area.
Poor signal.
If you are located in an area
where
temporarily shut off the phone.
used
with
Use a new battery.
Change your location to one
where the network is accessible,
or temporarily turn off your
phone.
Recharge the phone's battery.
Take the SIM card to your
network operator for testing.
Insert the SIM card properly.
inserted
Use a soft, dry cloth to clean the
SIM card contacts.
Contact your network operator.
Check the service area with
your network operator.
Move to an open space, or if
you are inside a building, move
closer to a window.
Solution
signaling
is
weak,

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