10
Troubleshooting
General problems
Problem
"The SIM card is
missing or is not
valid. You can still
make emergency
calls if your service
provider supports
it" displays
"No network
coverage," "Error
unable to connect.
No network
coverage." or
"Message sending
failed" displays
The bars next to
disappear
Description & Solution
Check that the 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
device, wait for about 2 minutes,
until your device finds the network
and receives a signal from the
network.
• If you are in a tunnel or in an
elevator, the device 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.
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