At this point, a small metal plate near the rear facing camera is loose and may come free from its recess.

Because it is very small and easy to lose, it's best to remove this plate and set it aside while you continue to work on your phone.

Use tweezers to remove the plate from beneath the bracket to the left of the rear-facing camera.

When reassembling, orient the plate with the small tab to the right and the longest flat edge against the top of the phone.