Problem with my finger sensor

My finger sensor got jammed and I could not operate I managed it with my virtual sensor, 2 days I had complete black screen then I revived.I approached a Third Party repairer he actually refurbished with new Operating system and when I took it back and reloaded with the back the system hung Apple service provider replaced the screen an expensive option it costed 130 u.s$ but now when I wanted to restore my back up from my macbook pro my Iphone says cannot proceed further it needs a password I have not created any password Its mind boggling how do I restore . I should not have bought an Apple product all they are fleecing us, they will never prosper