I installed the 2.7 firmware update on my 2013 MacBook Air, and something weird happened. I guess it crashed during the update. When it rebooted, everything was stuttery, glitchy, lines were going across my screen, Safari would become this giant mess of glitch art. It was scary. I went back to the App Store, and saw that the update had been installed, but it wanted me to do it again. Weird. So I did the update again, and my problems went away. What I'm wondering is if I should still be worried? Should I bring it to Apple? Did this faulty firmware update hurt my computer, or has it fixed itself? I'm not sure if this sounds stupid. I just would like to take care of it before anything worse happens. Thanks!