So I finally got the new Apple Big Sur software update loaded into my MacBook Air several days ago, and it shut down to nothing except a black screen and intermittent Apple logo. After trying about 4 different reload, clearing, and reset suggestions from Apple and other internet sources...I took it to Computer Hardware. Took their tech guy about 2 days to 'break the code'. Apparently is a bug which probably has been repaired by Apple now. Lots of folks besides myself have had same problems with the new update. I am sure glad Computer Hardware is here with great tech people and I didn't have to send off to Apple for repair. read more