2010 Macbook very odd keyboard issues


hi all! have unique keyboard issue have not been able find solution to. have macbook (13-inch, mid 2010) running sierra 10.12.5 (16f73). last year plus, keyboard work until press "0" key. key pressed entire laptop changes. every mouse click right click , keyboard no longer responds normally. 95% of keyboard keys don't work , output letters or numbers other key is. way fix restart. no other key , have searched extensively answer no luck. input @ immensely helpful. thank you!!
 

it sounds hardware error me. perhaps liquid damage scenario. can try reinstalling os see if cures issue. may require board level repair. try disconnecting trackpad , use external mouse doing same thing. have diagnosing on own removing keyboard, mouse, track pad , doing different combos find issue.
 


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