I phone 6s motherboard replacement with a new block iPhone 6

Hi everyone , I am currently using a iPhone 6 s . Recently having problem with its touchscreen , the lower bar of the screen is compleatly not working , and battery is down , show charging sign but doesn't change the percentage number with keep restarting .

On the other hand I have another iPhone 6 with network block so I can't use it .

To not that my faulty iPhone is 16 gb but the other one is 64 .

So is there any solution that I can change the motherboard of my block iPhone from my old one and use it ?