my buttons were sticking to on my Samsung Captivate , it got to the point where the power button was no longer working and my cappy was out of warranty. I just decided to take my captivate apart and disassemble it (i used this video
) and then i located the power button and used some " CRC QD Electronic Cleaner
" and just sprayed it directly into the power button (when i say "spray" i mean i pushed the spray button for about 1 second). After spraying it i pressed the button like 20 times, then i sprayed some more and while spraying (spray for 1 second) i was pushing the button about another 20-30 times. I repeated the spray and push cycle about 10 times (which means i probably pressed the power button over 300 times ), I waited about 5 mins to make sure it was "dry" and then i put the battery back in and test it and It seemed to have cleaned it out and now my power button worked. Then i put everything back together.
Note: I tried to spray and press it with the cappy with the enclosure/case/body on but the button cover blocks the actual button and i was forced to actually disassemble the case, its not to hard just looks intimidating. whole process took me about 45 mins first time.
Note 2: CRC QD Electronic Cleaner can also be found at most local auto parts stores BE SURE TO GET THAT BRAND as it is non-conductive, i repeat GET THAT EXACT BRAND/MODEL Cleaner, cheaper brands might be conductive despite it saying it is safe or does not dry as fast and who knows what might happen, CRC is a known well brand and has a good rep)