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1 P key not working after keyboard replacement
My MacBook Pro 13" Unibody Early 2011 had some water damage to the keyboard that caused the space bar to stop working, so I just replaced the keyboard with iFixit's replacement part, using the guide here: MacBook Pro 13" Unibody Mid 2010 Keyboard Replacement. After starting the system back up, all of the keys were working EXCEPT for the "P" key. Initially, it worked a few times if I pressed hard enough, but eventually it stopped working entirely.
During the replacement, I lost of of the 67 keyboard screws, so I reassembled it with all but one screw. I am not sure if this missing screw could cause issues with one key not working, but I thought I'd mention it.
I have tried re-seating the keyboard cable several times, and this doesn't seem to make a difference. I have also checked under the keycap for any obstructions, but it's clean.
Any ideas of what could be causing this? All of the other keys surrounding the P work fine. I can tear the system down again to remove the keyboard if necessary, if that would be helpful for diagnosis.
@danj Edited to add photos. Other than the old one looking absolutely disgusting, I don't see any differences that would explain the issue.
Old keyboard:
New keyboard:
crwdns2934109:0crwdne2934109:0
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@prwood - If you carefully lift off the rubber cap you'll find it has a carbon area on the bottom, see if you swap them over from a goo key from your old keyboard if that fixes things also inspire the two surfaces the carbon disk area shorts across for debris preventing the contacts closure.
crwdns2934271:0crwdnd2934271:0 Dan crwdne2934271:0