Home button too sensitive after screen replacement

"Readjust the screw right underneath the button, careful not to make it too loose or the button may leak water.

On a second thought, maybe you are not aiming for water resistance anyway, so just normal tightness and not too tight to break it, not too loose so it may come off and end you up with a dead forever button."

"Hi Victor

I have exactly the same problem I am going to approach the central screw tension in the underside of the Touch I/D sensor securing plate as a first step.

Costadelsol

Update (12/03/2017)

Hi

There does not seem to be a definite answer to this problem I finished up dismantling the Home button on the clients phone and re-assembling it extremely carefully, to my amazement the home button took a harder press for activation, the over sensitivity problem had gone so I an still in a quandary why the situation occurred in the first instance.

Here's to the next iPhone 7 repair.

Costadelsol"

"Try below steps..

Choose the click that’s right for you.

On iPhone 7 and iPhone 7 Plus, go to Settings > General > Home Button, then choose a click.

Change 3D Touch sensitivity.

Go to Settings > General > Accessibility > 3D Touch, then set 3D Touch sensitivity to Light, Medium, or Firm.

let me know if this helps you.."

"I think the small component that is suspect is that silver rectangle chip on the home button itself. It is held onto the flex with BGA solder balls which consists of a grid of solder balls (5x5)

Some of those balls can become loose due to flexing of the ribbon cable right under that chip.

That chip is called the Turtle IC. It has quite some underfill around that chip so most experienced micro-solderers have fixtures to hold them firmly in place to remove the underfill and fix the connections under the chip."

"sorry to tell you during replacing lcd you have damaged home button ic from right side of the corner if you have microscope please check and replace it with original ic it will definitely work

kind regard"