iPhone Motherboard Repair

Can you see your screen but can't seem to touch or it hangs just as your are about to do something important? This is known as touch disease and it characterized by the lines than keep popping downwards from the top of your screen.

Ways to prevent this: 

1. Don't keep dropping your phone even in a good case 
2. Don't over charge your phone to heat it up 
3. Don't sit with your phone in your back pocket causing it to bend