Table of Contents
Advertisement
of E81 en, A31nnn-Xnnnn-Xn-n-nnnn (22.08.2006, 17:39)
left page (90)
90
Questions & Answers
Problem
Shortened standby
time
You cannot switch
your phone on.
SIM card error
Unable to connect to
the network.
You cannot answer
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 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 inserted improperly. Insert the SIM card properly.
Debris on the SIM card
contacts.
SIM card invalid.
You are not within the
network's service area.
Poor signal.
You have activated the Call
Barring feature.
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 network is
accessible, or temporarily turn off your phone.
Recharge the phone's battery.
Take the SIM card to your service provider for
testing.
Use a soft, dry cloth to clean the SIM card contacts.
Contact your service provider.
Check the service area with your service provider.
Move to an open space, or if you are inside a
building, move closer to a window.
Go to Settings > Security > Barrings, and then
select Clear All.
Advertisement
Table of Contents
