Mac Book Pro 2012 not starting pink apple logo

Your Mac is at the stage of the boot up process where kernel extensions are being loaded. These are mainly device drivers, and are stored in: /System/Library/Extensions

Please try the following, in order. Stop at the step where the issue is resolved:

1. Reset your Mac's SMC.

   Reset the System Management Controller (SMC) on your Mac- Apple Support

   Fans, keyboard backlight, status indicator, battery indicator, display backlight, power button, close/open the lid, sleep or shut down, battery doesn't charge, MagSafe indicator light incorrect status.

   Hold down the <shift><control><option> keys, and then, press the power button. Hold all of them for, at least, 10 seconds.

2. Reset your Mac's NVRAM.

   How to reset NVRAM on your Mac- Apple Support

   Resets sound volume, display resolution, startup-disk selection, time zone, & kernel panic information.

   <option><command><P><R>

3. Boot up your Mac in Safe Mode.

   Try safe mode if your Mac doesn't finish starting up- Apple Support

   Use safe mode to isolate issues with your Mac- Apple Support

4. Boot up your Mac in Recovery or Internet Recovery Mode.
   • About macOS Recovery- Apple Support
   • When at the initial Recovery Mode screen, select the Disk Utility option.

   Run Disk Utility > First Aid to verify the startup disk's integrity.

5. Boot up your Mac in Single-User Mode.

   How to start up your Mac in single-user or verbose mode- Apple Support

   • At the command prompt, type:/sbin/fsck -fy<return>

     If fsck makes any repairs, you will get a message that says: Files System was modified. If you do, run fsck again until the "The volume <volumename> appears to be OK."

   • Typerebootat the prompt to exit Single-User Mode.
6. Run either Apple Hardware Test (AHT) (pre-2013 Macs) or Apple Diagnostics (2013+ Macs) to uncover any hardware issues with your Mac.

   Use Apple Diagnostics or Apple Hardware Test- Apple Support

   About the "Apple Hardware Test does not support this machine" message- Apple Support

   How to Use Apple Hardware Test to Diagnose Mac Problems- OSXDaily

7. Make a Genius Bar appointment at your local Apple Store.
   • Check Your Service and Support Coverage- Apple Support
   • For getting the right support, here's a genius idea- Apple
   • To contactApple Supportdirectly.

Try booting the Recovery HD by restarting the computer and immediately upon hearing the chime press and hold down the Command-R keys until the Apple logo and progress bar appear. If the same thing happens then make an appointment at the Apple Genius Bar for service. If you need to find an Apple Store - Find a Store - Apple.

Tessie,

I think you should add a Step 8 - what to do if Step 7 doesn't fix the issue. 😉😀

Too funny ... and so true!!! 😁 Hmm, I wonder if this is at the stage where the oxygen masks drop and your are told to "get into the brace position."

😁😁😁