Certain keyboard keys not working.
I got this Macbook Pro (Late 2011, 15”) from a friend who hasn’t used it in years. Everything seems to work fine, except the c, d, e and 3 keys don’t work at all. Before rushing out to replace the keyboard (or the upper case), are there any steps to make sure that I can repair it without spending any money? Could there be a possibility of water damage?
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