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모델 A1278, 2012년 6월 출시. Turbo Boost가있는 Intel 프로세서, 최대 512 MB DDR5 비디오 RAM

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My down button keeps going down even if you don't touch it

I was watching a video in youtube when suddenly the sound in the video keeps lowering down. i keep increasing the volume using up button, but the volume keeps going down. then i realize maybe my down button is stuck so i watched a video about this problem, i saw one try to do it. i remove the button, clean it and put it back in one piece. i thought it works but few hours later the volume keeps going down so i came here and ask if you guys knows how to resolve this problem.


ps: not very good in english so am sorry if my grammar is bad

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Did you have a liquid spill into the keyboard/trackpad at some point?

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Yes, but the next day i went to the repair shop to change the parts of my keyboard

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Clearly they really didn't clean things as over time what spilled has corroded and/or become gummy messing up the key switch.

I agree with @benjamen50 you'll need a new keyboard, Sorry ;-{

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Most likely a bad keyboard which happens from liquid damage. The keyboard will need to be replaced.

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