802 iPhone_iPad_Mac_apple

Forbidden sign on restart

After pushing an image to macbook, it shows forbidden sign. How can I fix it?

that can be serious, perhaps a dead or dying disk.

Do a SMC reset while it is shut off, then try again.

It will probably not startup, but if it does, make backups immediately !

Then run the etrecheck app, it will produce a diagnosis list,

post the list here.

etrecheck.com

最后更新：2017-11-16 18:41:06