Title: Surface Pro 4 (i7-6650U) Hackintosh – macOS installer freezes on grey screen / Setup Assistant reboot loop (Ventura/Sonoma/Sequoia)

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Hi everyone,

I'm trying to Hackintosh a Microsoft Surface Pro 4 and I'm stuck after several days of troubleshooting.

Hardware

- Microsoft Surface Pro 4

- Intel Core i7-6650U (Skylake, Iris 540)

- 8 GB RAM

- 256 GB SSD

- Dual boot with Windows 10

- OpenCore 1.0.7

What I've tried

I first followed a Surface Pro 4 OpenCore guide using the community Surface Pro 4 EFI (reported working with Ventura).

I created the installer using macrecovery.py (BaseSystem).

At first I couldn't even see the installer in OpenCore until I discovered I had to press Space to reveal auxiliary boot entries.

I also built my own EFI from scratch using the Dortania OpenCore guide.

With my own EFI I initially got:

«OC: Driver HfsPlus.efi cannot be loaded - Access Denied»

I fixed that issue and the installer now boots.

Current problem

The installer loads in verbose mode.

The verbose text finishes and then the display changes to a solid grey screen.

The machine never reaches the installer GUI.

The Surface becomes warm, Caps Lock no longer responds, and the system appears completely frozen.

I have also tested Ventura, Sonoma and Sequoia installers with essentially the same result.

Using the original Surface EFI, I can sometimes reach Setup Assistant. After selecting my country/region, the screen goes grey for about a minute, then the Surface automatically restarts. It briefly shows the OpenCore picker before rebooting again, creating an endless loop back to Setup Assistant.

Things I've already checked

- Secure Boot disabled

- HfsPlus.efi present

- OpenRuntime.efi present

- BigSurface.kext tested both enabled and removed

- Correct Iris 540 DeviceProperties (AAPL,ig-platform-id / device-id)

- USB installer recreated multiple times

- EFI rebuilt from scratch using Dortania

- Installer appears in OpenCore after pressing Space

The last verbose messages contain many "AppleHIDTransport", "IntelAccelerator", "AGPM", and "shared_region_check_np" messages before freezing, but I don't see an obvious kernel panic.

Has anyone successfully booted macOS on a Surface Pro 4 with an i7-6650U recently? Is this more likely to be:

- an ACPI problem,

- framebuffer/iGPU issue,

- USB mapping,

- Surface-specific kext issue,

- or something else?

Any advice or a known working EFI/config for OpenCore 1.0.7 would be greatly appreciated.

Thanks!