LG C297 Guia Del Usuario página 90

Problem
Enter PUK
Loss of Network
You have entered a
number but it was not
dialed
40
Possible Solution
The PIN code has been entered incorrectly three times in succession,
and the phone is now blocked. Enter the PUK supplied by your
service provider.
You may be in a weak signal area. Move and try again. You are trying
to access an option for which you have no subscription with your
service provider. Contact the service provider for further details.
Be sure that you have pressed Send key.
Be sure that you have accessed the right network service.
Be sure that you have not set an outgoing call barring option.
Be sure that you have entered the area code.