monterrey want to install a catalina update???
Hi.
A friend of mine ask me to repair her MacBookAir early 2015. It was stuck in some OS upgrade installation. After a few test I managed to start it normally. However now the OS which is Monterrey 12.7.6 want to install an upgrade coming from Catalina 10.15.7. This is the most odd thing that ever happened to me. I suspect she tried to install that upgrade initially and that's why her computer get stuck.
So, How do I correct this?
Earlier Mac models