iPhone power button sunk in, adhesive solved it all

My Problem

Mu iPhone 4s power button sunk in and I cannot easily turn on/off my device.

My Fix

This is my first time opening iPhone and I was pessimist by I was just like "just do it".

My Advice

It sunk because an ultimately tiny black point misplaced. This makes no comfortable contact between power button and internal power switch. I then just glued that tiny dot to the power button. I did not use the replacement power button.