My Problem
My home butt operation was sporadic at best.
My Fix
The original home button that was shipped had the contacts on the wrong side. Ifixit sent out a new one within a week, and that one works perfectly.
My Advice
One tip is to work in a clean environment. Preferably with a hard floor. If you drop one of those microscopic screws (which I did several times), you'll want nothing obscuring your view as you crawl on the floor to search for it. It also helped to be able to hear what direction it bounced. Lol.
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