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Fixing Black Screen Issue during macOS Sonoma Installation on MacBook Pro Mid-2012

Guide:

Step 1: Preparation

Before you proceed, make sure you have the following:

  • A bootable USB drive with macOS Sonoma (use macOS Patcher to create it).
  • A backup of your important data (just in case).
  • Patience and willingness to troubleshoot.

Step 2: Check Hardware Compatibility

Ensure that your MacBook Pro Mid-2012 is compatible with macOS Sonoma using the legacy patcher. Verify that your MacBook Pro model is supported, and your hardware meets the minimum requirements.

Step 3: Boot into Safe Mode

  • Insert the bootable USB drive with macOS Sonoma into your MacBook Pro.
  • Turn on your MacBook Pro and immediately press and hold the "Shift" key until you see the Apple logo.
  • This will boot your Mac into Safe Mode. If you can Success fully boot into Safe Mode, it indicates that your hardware is generally compatible.

Step 4: Graphics Drivers

The black screen issue may be related to graphics drivers. Here's what you can try:

  • Boot into macOS Sonoma Recovery (as you mentioned you can access it without issues).
  • In the recovery environment, go to "Utilities" > "Terminal" from the menu bar.
  • Run the following command to disable the dedicated  GPU  (assuming this is the cause of the issue):
Copy code:
sudo pmset -a gpuswitch 0

This command disables the dedicated  GPU  and forces your MacBook Pro to use integrated graphics.

  • Reboot your MacBook Pro and try the installation again from your bootable USB drive

Step 5: Reset NVRAM

If the black screen issue persists, try resetting the NVRAM:
  • Turn off your MacBook Pro.
  • Turn it on and immediately press and hold the "Option," "Command," "P," and "R" keys simultaneously.

Keep holding the keys for about 20 seconds, and your MacBook Pro should restart.
Try the installation again.

Step 6: Reinstall macOS Sonoma

If none of the above steps work, you may need to perform a clean reinstall of macOS Sonoma:
  • Boot into macOS Sonoma Recovery.
  • Use Disk Utility to erase your current macOS partition.
  • Reinstall macOS Sonoma from your bootable USB drive.


Black screen in macbook pro mid 2012 installing sonoma with legacy patcher,

it appears in the boot and the white apple logo shows up but end up returning to the boot again, display drivers issues maybe? I can access the macos sonoma recovery screen without any issues

submitted by /u/jblion13
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