Chosen Solution

I just ordered new screen for my iphone 6, i will be keeping my home button, do i need glue for seal if i re use seal?

No need for glue. What I do is bend the middle of metal bracket that has two screws behind the home button a bit so that the little metal circle is closer to the home button. Only need to do this if the home button feels dipped in / deep / loose when clicking it).