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Appendix A: Troubleshooting
General problems
Problem
"Insert SIM card"
displays
"No network
coverage,"
"Unable to
connect. No
network
coverage." or
"Message
sending failed"
displays
The bars of the
signal icon ( )
disappear
The display is not
clear
Description & Solution
Check that the USIM/SIM card has been
correctly installed.
• The network connection has been lost.
You may be in a weak signal area (in a
tunnel or surrounded by buildings).
Move and try again.
• You are trying to access an option for
which you have not taken out a
subscription with your service provider.
Contact the service provider for further
details.
• If you have just turned on your phone,
wait for about 2 minutes, until your
phone finds the network and receives a
signal.
• If you are in a tunnel or in an elevator,
the phone may not be able to receive
the network signal properly. Move to an
open place.
• This may appear when you move
between different service areas. It is
normal.
In direct sunlight, you may not be able to
see the display clearly. Moving to a place
with different light should solve this
problem.
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