Shift key seems to be stucked should I change topcase only?
I spilled before 2 months coca cola on the keyboard of my macbook pro mid 2010(A1286 15''). I assembled everything and cleaned it with alcohol(ethanol). For the first minutes it worked well but then shift key was acting like it was always on. But after 5 days it has been fixed by itself.
My problem is that the shift malfunction appeared again, after 2 months(now I am using external keyboard). I am almost ready to order a top case? My question is:
Will it be fixed if change the keyboard only? Is there a chance of been a motherboard(logic board) problem?
How can it be the motherboard? When I am inserting the retail Macos cd it works like a charm, plus, right now i am using external keyboard and its fine.
I don't want to spend that amount of money and find out that is not the keyboard. I tried to find feedback on the web from guys that had the same problem but I couldnt find if they resolved their problem by just changing their keyboard(top case).
Is this a good question?