Celestial

You can try mine u need to change bios configuration BIOS Settings: F10 key Disable Fast Boot Secure Boot Serial/COM Port Disable wake on USB Parallel Port VT-d (can be enabled if you set DisableIoMapper to YES) CSM Thunderbolt(For initial install, as Thunderbolt can cause issues if not setup correctly) Intel SGX Intel Platform Trust CFG Lock (This must be off, otherwise your hack will not boot with CFG-Lock enabled) if you can't find the option then enable AppleXcpmCfgLock under: Kernel -> Quirks -> AppleXcpmCfgLock=True Enable VT-x Above 4G decoding Hyper-Threading Execute Disable Bit EHCI/XHCI Hand-off OS type: Windows 8.1/10 UEFI Mode DVMT Pre-Allocated(iGPU Memory): 64MB SATA Mode: AHCI Note: Most of these options may not be present in your firmware, we recommend matching up as closely as possible but don't be too concerned if many of these options are not available in your BIOS. Save and reboot in UEFI.

Finally I fix it ? now working Here is it my open core EFI for my laptop Elitebook 850 G1 i5 4th generation (Haswell) Intel graphics 4400 Open Core prebuilt EFI (bigsur 11.5.2) Link https://drive.google.com/file/d/16NzPZ72pQvjbFMzK9RjziHdNe-IdZpPh/view?usp=drivesdk Working Clover EFI (bigsur 11.5.2) https://drive.google.com/file/d/16vUqDM4_R7hNWroHzq3trgonmdfWsGOX/view?usp=drivesdk Tools I used for it : https://drive.google.com/file/d/16bw1w6GpbLHE7ef9Y06Xwh7wF9dTSEdg/view?usp=drivesdk

https://github.com/hshamsaldin/OpenCore-HP-840-G1-Haswel I got this EFI it's working but stuck on installation time.. Also when I chaged smbios it's not work. Can any 1 help My laptop Elitebook 850 G1 i5 4th Intel hd 4400 Ram 8 gb Storage hdd 750 ,250 ssd Audio layout 84 - 0x54 Intel wifi 7260

Yes done nvram reset same issue not show Installation partition only three options Nvram Shell Sip Clover 5,6,7,8,9 chipset working perfectly But open core not working

Try both prebuilt EFI open core Haswell notebook and Desktop still no success. Didn't show Installation partition only show nvram shell sip Can U generate for my laptop configuration

Hardware : Hp laptop Elitebook 850 G1 8gb of ram 750gb hdd 250 gb ssd I5 4th generation Haswell Graphic intel hd 4400 Audio layout 84 ,0×54