Samsung BlackJack SGH-i607

Just bought one from my friend. He got it from his friend that changed carriers...he wanted to get it unlocked and use it on tmobile but sold it to me instead. Put my sim in and it came up with an error. I thought it was the sim but mine is ok..seems that someone passworded it with something other than the default 1234 . I tried a hard reset and soft and its still looking for the password. I'm waiting for him to get back to me but does anyone know another way around this...seems to me there has to be some way around it in case people forget.

Thanks