Chosen Solution

My MacBook Air 11 recently shut down and when I switched it on it went on the apple logo and refuses to log in. I took it to the nearest istore and it came back with ‘unit is vintage. Can no longer assess/repair/qoute unit. Apple support no longer support the unit’. Is this the end of it or something can still be done to repair it?

Most of the time this is simple a corrupt system folder. First try starting in Safe Mode by holding down the Shift key on start up. Next try booting from and external USB source. Recently I have seen a couple of the SSD blades fail. Remove the blades, then try booting from an external source. I forgot, also try booting to the repair partition so you can run Disk Utilities on it. Hold down the option key on boot and select the partition.

Try booting in safe mode. https://support.apple.com/en-us/HT201262 Follow that guide on how to do it and trouble shoot your issue if you can get into safe mode. If you try safe mode and it still does the same thing, report back and I will help you try to find other things to try.