Iphone 6s parts

iPhone parts one mother board will stay stuck on apple logo and the other mother board works both iPhones 6s 3 working charging ports 1 working loud speaker 2 working vibratos 2 working front cameras 2 working ear speaker 1 working rear camera and 2 boxes one iPhone 6s it ripped on one of the sides and the other one I’d from 6 that one is in good condition. I can add a new battery and 2 perfect screens for 50 dollars more, instead of buying separate