LG P920 User Manual page 128

Troubleshooting
Message
Codes do not match
An application cannot
be set
Calls not available
126
Possible causes
To change a security code, you
will need to confirm the new code
by re-entering it.
The two codes you have entered
do not match.
Not supported by service provider
or registration required
Dialing error
New SIM card inserted
Prepaid Charge limit reached
Possible Corrective Measures
If you forget the code, contact your service provider.
Contact your service provider.
New network not authorised.
Check for new restrictions.
Contact service provider or reset limit with PIN 2.