Chosen Solution
after i replaced the display on an iphone 7 the home button works only half the time. the other half it only clicks if i put a lot of force into it (like my elbow) touch id works 100% of the time
You will need to rule out the screen as the home button flex may be damaged. But from what you are describing could be a faulty turtle IC which is on the home button assembly and one of its jobs is to detect pressure on the home button. If you have nudged the turtle IC while transferring the home button this could be the cause and would be a costly repair with no guarantees.
