MacBook Pro won't start. Question mark folder shown.

Hi,

 

My MBP won't start after a full battery drain when playing music on iTunes. A blinking question mark folder appears.

 

- Running Mac OS Mavericks at time of failure.

- Currently Mac running OS Sierra from USB drive.

- Mac won't recognise HDD connected on SATA interface.

- Outside USB diagnostic says mentioned HDD works fine (Mac Original Seagate 500 GB).

- NVRAM and SMC have been already reset.

- Internal HDD feels spinning (HDD Cable seems fine).

- Other SATA interface (Optical Drive) working fine.

 

Screen Shot 2018-01-15 at 1.20.56 AM.png

 

For any suggestions, thank you.

 

- David


MacBook Pro (13-inch Early 2011), OS X Mavericks (10.9), Model: A1278
2018-01-25 Add comments
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    Hi David!

    I understand that your Mac is showing a flashing question mark when you attempt to start it, and I'm happy to help.  You've done a great job with troubleshooting so far.  Please follow the instructions in this support article, and let us know the results.

    If a flashing question mark appears when you start your Mac

    Cheers!
    2018-01-25 0 0
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