How to figure out a iPhone 4s password?

I have an iPhone 4s and my parents locked it. It's the letters lock not numbers. I tried everything and it work. Its locked for 5 minutes now. My parents took away my phone but I have it. Like they told me to keep it with me so they can track me. But it's locked -.- so what to do?)

Ask them.
otherwise there's no other way but a full reset, and you wouldn't want to mess with that.

You just have to take it to a store that deals in cellphone repair/sales they normally have it advertised that they unlock iPhones. I live in south Philly and almost any store that deals in repair of phones will do it for like 20 bucks

Ask your parents or take it to the apple store!