Chosen Solution
I am in the middle of replacing my touch screen/digitizer with frame. I am getting ready to put the phone back together except I noticed a part that is on my old phone that I am sure needs to be transfered to the new assembly., The part is a chrome circle with two tiny gold springs above it. It looks like one of those button cell batteries. It’s just to the right of the rear camera. I need to know what it does and how to take it off ..
Judging by the repair guide posted here on iFixit, the part you’re referring to would be the vibrate motor. In my experience, use some heat from either a heat gun or hair dryer to warm it up a bit to soften the adhesive. Gently pry up on the circle disk itself, not the springs, with a spudger and it should come free.
