Easyfone C512W - SIM card error; Failure to connect to network

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PIN code not accepted
Wrong PIN code
entered too many
times
Enter the PUK code to change the PIN code,
or contact your service provider.
SIM card error
SIM card damaged
Check the condition of the SIM card. If it is
dam- aged, contact your service provider.
SIM card incorrectly
installed
Check the installation of the SIM card.
Remove the card and reinstall it.
SIM card dirty or
damp
Wipe the contact surfaces of the SIM card
with a clean cloth.
Failure to connect to network
SIM card invalid
Contact your service provider.
No coverage of
GSM service
Contact your service provider.
Weak signal
Too far from base
station
Try again from another location.
Network congestion
Try calling at a later time.
Echo or noise
Regional problem
from bad network
relay
Hang up and redial. This may switch to
another network relay.
Failure to add a contact
Phonebook memory
full
Delete contacts to free up memory.
Failure to set a function
Function not supported
Contact your service provider.