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Appendix A: Troubleshooting
General problems
Problem
Description & Solution
“Insert SIM card”
displays
Check that the SIM card has been
correctly installed.
“No network
coverage,”
“Unable to
connect. No
network
coverage.” or
“Message sending
failed” displays
• 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.
The bars of the
signal icon (
)
disappear
• If you have just turned on your phone,
wait 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.
The display is not
clear
In direct sunlight, you may not see the
display clearly. Moving to a place with
different light should solve this problem.