Answer the question
In order to leave comments, you need to log in
Answer the question
In order to leave comments, you need to log in
There may be a problem with the disk. If you just need to install the OS, try cmd+r https://support.apple.com/en-us/HT201314
First try Reset NVRAM and Reset System Management Controller (SMC) .
Didn't find what you were looking for?
Ask your questionAsk a Question
731 491 924 answers to any question