have had trouble with macbook air power button working. installed a new top case, it powered up but now with only a white screen with a file folder with a ? flashing in the middle of the screen.
Check the connections to the MacBook Air's internal drive.
which one is the internal drive? sorry. I just was able to get it to start holding the option button and its now trying to an internet restore? I think that's what it said.
Retrieving data ...