I ve read from multiple people recently that if you upgrade or reset the firmware or something it could fix this problem.
Apple watch touch screen not working after replacement.
Follow below steps to hard reset you apple watch.
I have an apple watch series 3 a1861 gps cellular i replaced the screen by myself.
Once your watch is turned off again long press the side button until the apple logo is seen on the screen.
One issue that we ve experienced a couple of times is when the watch face stops responding to touch.
The touch is working 100 but i needed to reset my device and after that my watch is not pairing with my iphone.
Apple watch series 3.
The apple watch series 4 has a glass screen.
If apple watch touch screen not working is not solved by a soft reset go for a hard reset.
Long press the digital crown button and side button simultaneously for about 12 seconds.
Most of us know those work but the touch does not respond.
According to other users in the aforementioned thread the lines on the display are often the result.
Reach out to apple and get a replacement apple watch or have the screen on your watch replaced.