Power button does not respond, at all.

A

AC Question

Hello, I'm using a Samsung Galaxy J5, I've had it for the most part of 2 years now and it has worked perfectly fine until recently, the power button seemed to lose functionality.

I've seen various discussions here and on other sites, some of them were pointing to safe mode, factory reset (which I cannot do, because the power button doesn't want to give in) and even flicking behind the button.

I cannot and do not find a solution, perhaps one of you can help me out!
Thanks in advance!