Guide:
If you're encountering boot issues on your iMac 15.1 after upgrading to Sonoma 14.4, particularly where the system resets root patches and becomes unresponsive after a reboot, here are some troubleshooting steps to try:
Verify Compatibility: Ensure that your iMac 15.1 is fully compatible with Sonoma 14.4. Check compatibility lists and forums to confirm that all hardware components are supported.
Check Bootloader Configuration: Review your bootloader configuration, such as OpenCore or Clover, and ensure that it is properly configured for Sonoma 14.4. Verify that the necessary ACPI patches, kexts, and drivers are correctly installed and configured.
Reset NVRAM and SMC: Perform a reset of the Non-Volatile Random Access Memory (NVRAM) and System Management Controller (SMC) on your iMac. This can help resolve various boot-related issues.
Check SSD Compatibility: Ensure that your Samsung 870 SSD is fully compatible with macOS Sonoma 14.4. Some SSD models may require firmware updates or specific configurations for optimal compatibility.
Monitor System Logs: Boot your iMac into verbose mode and monitor the system logs during the boot process. Look for any error messages or warnings that may indicate the source of the problem.
Reapply Root Patches: If the root patches are being reset after a reboot, try reapplying them using the appropriate method for your bootloader. Make sure to follow the recommended procedures and double-check the patching process.
Test with Different Configurations: Experiment with different bootloader configurations, kernel extensions (kexts), and drivers to see if any specific combination resolves the issue. This may involve trial and error to identify the problematic component.
Hardware Diagnostics: Run hardware diagnostics on your iMac to check for any underlying hardware issues that may be contributing to the boot problems. This can include testing the RAM, SSD, GPU, and other components.
Seek Community Support: Reach out to online forums, Hackintosh communities, or dedicated support channels for assistance. Other users may have encountered similar issues and can provide valuable insights or solutions.
Consider Professional Assistance: If the issue persists despite troubleshooting efforts, consider seeking professional assistance from experienced Hackintosh builders or macOS specialists who may be able to diagnose and resolve the problem.
By following these troubleshooting steps and seeking assistance from the community or professionals as needed, you can work towards resolving the boot issues on your iMac 15.1 running Sonoma 14.4.
I have an iMac 15.1 with a Samsung 870 SSD installed. After an upgrade from Ventura I cannot get pass the login screen. The screen flickers, goes black and the Mac is unresponsive. The same happens to a clean install but after I do the first reboot or shutdown. I tried resetting nvram and using the guide on GitHub for stuck boot bar ( not the same problem but I gave it a shot). I installed Sonoma on my MPB 2015 and everything works fine but my iMac refuses to work with Sonoma.
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