Chosen Solution
When I was taking my xbox one controller apart to set my new shell and prts on it then i found two small pieces that fell put which idk where they go.
They’re supposed to go here.
They go under the bumper sensor. The level part goes down toward the sticks.
they hold bumper buttons in place, would recomend screwing down board first. Yes I know about home button was fixed.
I figure out where and what they are for without this guide… https://imgur.com/gallery/TH3y6ko