HP 250 G7 OpenCore EFI

[Feartech]

To be hinest, I don’t expect anything different. So far I did it several times from scratch. Then I tried troubleshooting tips from dortania. Managed to move forward a bit. No idea what to change.

which is why i mentioned to start again, try my guide and let's see how far you can get

 

[k.kemic]

A) Applying steps according to Post #1 and Post #2 (taking provided EFI as basis, making the following changes and booting Catalina 10.15.7):
-----
For HP user's, you must set the following to true in your config.plist:
LapicKernelPanic
UnblockFsConnect


Coffee Lake and Whisky Lake
Booter Quirks:

enable:
RebuildAppleMemoryMap
SyncRuntimePermissions

disable:
EnableWriteUnprotector

Device Properties - Add - PciRoot(0x0)/Pci(0x2,0x0)
AAPL,ig-platform-id -> 00009B3E (for UHD620)

filled this one as well:
device-id -> 9B3E0000

kernel - quirks:
enable:
DisableIoMapper
PanicNoKextDump
PowerTimeoutKernelPanic

SMBIOS:
MacBookPro15,2

UEFI -> Quirks:
enable:
ReleaseUsbOwnership
---------
Result: It hangs very early after few boot logs (see Att1.img).

B) If I revert Booter quirks to:
Booter Quirks:

disable:
RebuildAppleMemoryMap
SyncRuntimePermissions

enable:
EnableWriteUnprotector

then it hangs on BuildActDeviceEntry exit (see Att2.img). EFI from the last attempt (B) is also attached.

Is there anything else I can try?

 

[Feartech]

A) Applying steps according to Post #1 and Post #2 (taking provided EFI as basis, making the following changes and booting Catalina 10.15.7):
-----
For HP user's, you must set the following to true in your config.plist:
LapicKernelPanic
UnblockFsConnect


Coffee Lake and Whisky Lake
Booter Quirks:

enable:
RebuildAppleMemoryMap
SyncRuntimePermissions

disable:
EnableWriteUnprotector

Device Properties - Add - PciRoot(0x0)/Pci(0x2,0x0)
AAPL,ig-platform-id -> 00009B3E (for UHD620)

filled this one as well:
device-id -> 9B3E0000

kernel - quirks:
enable:
DisableIoMapper
PanicNoKextDump
PowerTimeoutKernelPanic

SMBIOS:
MacBookPro15,2

UEFI -> Quirks:
enable:
ReleaseUsbOwnership
---------
Result: It hangs very early after few boot logs (see Att1.img).

B) If I revert Booter quirks to:
Booter Quirks:

disable:
RebuildAppleMemoryMap
SyncRuntimePermissions

enable:
EnableWriteUnprotector

then it hangs on BuildActDeviceEntry exit (see Att2.img). EFI from the last attempt (B) is also attached.

Is there anything else I can try?

try with SSDT-AWAC.aml

 

[k.kemic]

try with SSDT-AWAC.aml

I've just done it. Added SSDT-AWAC.aml, refreshed config.plist. Result is same. Also tried with latest opencore 0.6.3. Same problem. Any other idea?

 

[k.kemic]

I installed windows to see if it works. All fine. TouchPad is Synaptic SMBus Touchpad, UHD 620, i5-8265u.

 

[k.kemic]

I installed windows to see if it works. All fine. TouchPad is Synaptic SMBus Touchpad, UHD 620, i5-8265u.

Any idea how to install macOS?

 

[k.kemic]

I found this on dortania troubleshooting (HID: Legacy .... issue).
----

• Some drunk firmware writer at HP also disabled the RTC on the HP 250 G6 with no way to actually re-enable it, for users cursed with such hardware you'll need to create a fake RTC clock for macOS to play with:

Example of what a disabled RTC with no way to enable looks like(note that there is no value to re-enable it like STAS):

----
So, I have HP 250 G7, and I think the problem still exists.
Question: does anyone know how to create fake RTC clock? I have a good feeling that fake RTC clock would solve the problem.

 

[k.kemic]

Solved this problem. I've create fake RTC. See attachment. Now I am in graphical mode and trying to install big sur.

 

[devilhunter84]

...

Solved this problem. I've create fake RTC. See attachment. Now I am in graphical mode and trying to install big sur.

Did this work out for you in the end?

I've tried everything i could for the last couple of months and ended up like you did in post n. #22

Used your EFI Folder from #22 and RTC patc from #28 and still no dice.

I removed the Had drive jsut now from the Laptop to get rid of the AppleNVME assert failed error and it still hangs at the screenshot from your #22

 

[k.kemic]

Yes, it worked. Just read what I wrote.