Chosen Solution
I recently purchased an iPhone 8 Plus home button replacement from ifixit. After a couple of days, the button has become loose/wiggly and doesn’t respond at times. Is there something I can do on my end or is it a defective product? (Side note: screw holding the button is tight and secure)
There is a screw that holds the home button in place at the back. Open it up and see if the screw is loose or missing.