BLINKING "?" booting up

Hi - I recently had a problem with my MBP 2011 whereby it wouldn't boot up. I kept getting a blinking question mark. Thinking it was the drive that had failed, I replaced it with a new 500GB SSD and also a new HD cable. Alas, it still won't boot up and shows the blinking ? after about 30 secs.


Any ideas as to what this might be?


Thanks in advance for any replies.


Dan.

MacBook Pro 13″, OS X 10.11

Posted on Mar 13, 2022 9:52 AM

Reply
Question marked as Top-ranking reply

Posted on Mar 17, 2022 7:36 AM

Dan Farrell wrote:

Hi - I recently had a problem with my MBP 2011 whereby it wouldn't boot up. I kept getting a blinking question mark. Thinking it was the drive that had failed, I replaced it with a new 500GB SSD and also a new HD cable. Alas, it still won't boot up and shows the blinking ? after about 30 secs.

Any ideas as to what this might be?

Thanks in advance for any replies.

Dan.


If your Mac starts up to a question mark

If your Mac starts up to a question mark - Apple Support



All new drives need to be formatted/initialized and the macOS installed....


How to reinstall macOS— How to reinstall macOS - Apple Support


Restore your Mac from a backup

Restore your Mac from a backup - Apple Support




1 reply
Question marked as Top-ranking reply

Mar 17, 2022 7:36 AM in response to Dan Farrell

Dan Farrell wrote:

Hi - I recently had a problem with my MBP 2011 whereby it wouldn't boot up. I kept getting a blinking question mark. Thinking it was the drive that had failed, I replaced it with a new 500GB SSD and also a new HD cable. Alas, it still won't boot up and shows the blinking ? after about 30 secs.

Any ideas as to what this might be?

Thanks in advance for any replies.

Dan.


If your Mac starts up to a question mark

If your Mac starts up to a question mark - Apple Support



All new drives need to be formatted/initialized and the macOS installed....


How to reinstall macOS— How to reinstall macOS - Apple Support


Restore your Mac from a backup

Restore your Mac from a backup - Apple Support




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BLINKING "?" booting up

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