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Replaced top case, keyboard still has non-working keys

Replaced the entire top case after a Coke Zero spill caused parts of the right side of the keyboard to quit working. Now, I still have a stripe of keys (8,9, U, I, K, L, ;) not working, and the power button doesn't seem to want to turn the system on consistently.

Should I be looking at replacing the trackpad, or is it more likely the logic board took damage I haven't found. It looks clean and there were no signs liquid had penetrated beyond the keyboard.

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Usually such a fault is at keyboard level.

Were the same keys from before damaged? If not, and the new keyboard has a different set of faulty keys, then you got yourself a damaged replacement keyboard.

In other words, I'd start by trying to rule out a faulty new keyboard before looking for something else.

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It seems to be the same keys as before, although I'm not 100 percent sure because I didn't log all the dead keys before I swapped the cases.

It's my understanding that the keyboard inputs route through the trackpad daughterboard back to the logic board over the same cable as the trackpad input. I hadn't noticed any trackpad problems, so my suspicion was that the keyboard connector was having problems.

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Examine the trackpad board and all cables with something like 20x magnification (or more if available). Pay special attention to all the connectors and cable tips, and *underneath* anything that can hide water damage.

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