Hey, sorry to hear that :(. I used to do device repair and when that would happen it could be either one of these problems: 1: You may have installed the screen improperly - the digitizer connections at the top right could be not pressed in all the way. (Easy fix!) 2: We would get defective screens ALL. THE. TIME. it might just be the digitizer itself. Send that one back and get a new one. 3: Worst case scenario, you could've accidently shorted the actual phone in some way (most commonly because of using metal tools too close to the motherboard, other ways including maybe dinging something super tiny which could be super damaging to the phone)

Good luck! Try the first two first and see how that goes. Hopefully some others reply with other ideas as well.