What is a software that can unlock my cell phone code?

i accidentally changed my code and don't know what it is. i heard that there is a software that can try all codes very fast and want to know the name of it.What is a software that can unlock my cell phone code?First of all if such software did exist, then we would need to know the model of your ******* cell phone. By the way, what in the hell is a cell phone code, I mean really.What is a software that can unlock my cell phone code?go to the stor they unlock it 4 u