Chosen Solution

How to fix blinking question mark in MacBook Air 11”?

If you see a question mark folder is that the Mac don’t find the MacOS.You can try this : Power off the Mac than power on and hold the keys Comand + R and the Mac will boot in to the recovery partition.From there you can go to disk utility and run a disk utility in that SSD to check for errors.If you don’t find any errors from that partition you can try to reinstall the MacOS and see if that can fix the problem. Another option is that you remove the ssd from the Mac put on a external enclosure en boot from the external enclosure using command (option key) and see if you can see the drive or if you can boot.I have seen MacBook Air ssd damage ramdonly so I suggest you to check if that drive is good first :)