Tag on back of keyboard
When I remove my logic board there is a short flat tag (about 30mm long , 8mm wide) standing up from the back of the keyboard in a central position with two bare connectors on the end. What is it and does it need to be positioned somewhere when I re-assemble?
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How about posting a picture so we can see what you are describing Adding images to an existing question.
You might want review this guide MacBook Pro 15" Unibody Mid 2010 Logic Board Replacement
by Dan