Why is the home button not working on iphone5s?

Question

iPhone

The button on 5s began to work poorly, I decided to take it apart and see. He took off the screen, did not break the cable, carefully threw it back. As a result, I didn’t take it apart, put it back together, the imprint disappeared, the button began to work once out of 10. There are no visible damages on the cable, the imprint microcircuits are not chipped, not torn off, everything is in place.