Samsung C5212 - Manual (Page 55)

a
troubleshooting
If you are having trouble with your mobile phone, try these troubleshooting procedures before contacting a service
professional.
While using your phone, the following messages
may appear:
Message Try this to solve the problem:
Please insert SIM
card Ensure that the SIM card is
installed correctly.
Phone lock
When the phone lock feature is
enabled, you must enter the
password you set for the
phone.
Slot 1 Enter PIN/
Slot 2 Enter PIN
When using the phone for the
first time or when the PIN
requirement is enabled, you
must enter the PIN supplied with
the SIM card. You can disable
this feature by using the
PIN
lock menu.
Slot 1 Enter PUK/
Slot 2 Enter PUK
Your SIM card is blocked,
usually as a result of entering
your PIN incorrectly several
times. You must enter the PUK
supplied by your service
provider.
Message Try this to solve the problem: