Default Suggestion on replacing broken soft key

Hi guys, did anyone here ever replace soft key on your fassy...? Mine was broken without knowing what cause it really... Flashing stock ROM couple of times, changing many custom ROM didn't fix the soft key... So I assumed that this was a hardware problems...

Finding some cheap replacement part for the soft key on ebay.. But im afraid that when i tearing down the screen or digitizer, it will need to glue them back again..? I saw in some tutorials that tearing down the screen that was glued and changing the soft key require taking of the screen...

did you guys have anything about this...? I hope you dont get confuse with my question...


Edit: find my self the answer... people usually use specialized 3m 2mm double sided tape for the screen or digitizer, found that if i change the soft key then I should tear the screen... hopefully i didnt brake the screen when i taking it down...