Chosen Solution
Long story short, I bought a new housing without the small parts and transferred everything from the old part. Volume buttons click just fine but I cannot make power button to click like it used to be . Can anyone help me with the bracket and the metal thing that is attached next to it? What is the correct position etc Thanks a lot in advance!
Ok found what was wrong. The metal thing that attaches on the outer button has a metal circle thing on it that apparently fell off and there wasn’t any contact between the flex and this circle in order to reproduce an actual click. Used some t7000 to create an artificial circle and now it works. It’s better though to buy the actual part but here in Greece it’s nowhere to be found.