BlackJack II (SGH-i617): The SIM card is missing message appear
Ensure that the SIM card is installed correctly.
BlackJack II (SGH-i617): Enter PIN message appear
When using the device for the first time or when the PIN requirement feature is enabled, you must enter the PIN supplied with the SIM card.
BlackJack II (SGH-i617): SIM card blocked message appear
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.