power button and several keys not working

I have a white macbook White late- 2009 A1342 macbook Duo

The power button and several keys on the rights side of keyboard do not work . Can only power up by jumpstarting.

Any way to further diagnose tried pram and smc reset.

Might I need to replace ribbon cable or keyboard/topcase

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선택된 해법

Yes - top case replacement. Sounds like spill damage. Check in side for corrosion.

If this answer is acceptable please remember to return and mark it.

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No spill damage but maybe keyboard cable was damaged? Do I still need new top case - any way to put in new ribbon cable only. New topcase $150, used macbook ebay $320 best choice?

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You can start with the cheaper fix… I have no way of knowing where the damage is. If you need/want other parts on hand maybe the used MB is a good investment.

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