Chosen Solution
So my iPhone 6s has water damage. The device seems to be in fully working condition other than the fact that the screen becomes unresponsive when not touching it. The touch id doesn’t work as well. Example of problem: So I unlock my iPhone I play a video on youtube. The touch screen becomes unresponsive after 20 seconds or so but the video keeps on playing the volume buttons work and so does the home button. So then I have to lock and unlock the phone to fix the problem temporally.
water damage is not fun. but you can fix it! Electronics Water Damage iPhone 6s Teardown