Recently I had a problem with the keyboard and I gave it for repairs. Today I got it back but now I just realized that the keyboard lights are not working. They said that they replaced my keyboard. I saw in another place saying that the keyboard light connecter could get pulled off accidentally while repairing the keyboard. If this is the case, is it possible for us to check it without having to remove the warranty sticker? (Its a late 2011 macbook pro 17 ) Thanks.