Hello,
we had some liquid (cranberry juice I was told later) spilled on my daughter's MacBook Air and we did our best to clean it up as quickly as possible without disassembling the machine. The device worked fine for about one month and then it popped up with the "question mark folder" and will not boot at all now. We have done a recovery boot and the system does not show the storage device installed. I have removed the I/O board and found some residue on it that I cleaned as well as inspecting the other components. Is there anything else out there that I'm not doing that I can try before I try to decide which component need replacing?
Thank you.