I have a samsung blackjack

Question

i have a samsung blackjack 2 sgh-i617 and i need to unlock the keypad. it dose not have service on it but i do need to get in it. i have forgot the 4 digt code and now the screen says ''several incorrect passwords have been enterted.to continue password entry, enter 'a1b2c3'.to make an emergency call, click cancle, then dial.'' please help thanks mike