Dead F5, 5, T, G, B keys on MacBook Pro.

I purchased a Mid 2012 MacBook Pro for cheap but the F5, 5, T, G, B keys did not work. I replaced the top case and keyboard assembly and the same keys are still not working. I’ve tried resetting the PRAM and the SMC but no luck. Any idea what could cause this?

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Take a picture of the keyboard connection on your motherboard and post it here, the connection may is damage or has liquid damage iFixitでの質問に画像を追加する方法

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The keys in question share the same column line so the connection point to the logic board and its lines are suspect!

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