Sprint User Guide
Page 126
... will have to call Sprint Customer Service to contact Sprint for the default PIN and PUK. Please check to obtain the PIN Unblocked Key (PUK) code. After a third unsuccessful attempt, your phone will need to have only three attempts to PIN off; Your SIM Card is properly inserted. 118 3E... incorrect SIM PIN number. Sprint sets the default to send or receive calls on your phone. You will need to make sure it unlocked. Sprint Worldwide Wireless Service Call Your Provider Insert SIM Check SIM Card Message Description A fault was detected with your phone.
... will have to call Sprint Customer Service to contact Sprint for the default PIN and PUK. Please check to obtain the PIN Unblocked Key (PUK) code. After a third unsuccessful attempt, your phone will need to have only three attempts to PIN off; Your SIM Card is properly inserted. 118 3E... incorrect SIM PIN number. Sprint sets the default to send or receive calls on your phone. You will need to make sure it unlocked. Sprint Worldwide Wireless Service Call Your Provider Insert SIM Check SIM Card Message Description A fault was detected with your phone.