RealCare Baby SCREAMING?

This is a fake computerized baby that i have brought home for a class assignment, This was its night routine Bottle, Sleep, SCREAM, the head hasn't been tilted back because it has just been laying there n supported by blanket and when i wake up to check it looks fine so i chime it and it rings. This is the point where it SHRIEKS and SCREAMS it doesn't quit Its the Hurting Scream But i haven't done anything. i proceed for the bottle n diaper n when those done work i rock but that doesn't work n usually if its burping is what it needs the rocking burps it also because i have done it before plenty of times.