Dell Latitude 7400 | Intel Core i7-8665U | 32GB RAM | Intel UHD Graphics 620

EliteMacx86 · May 9, 2021

Dell Latitude 7400 | Intel Core i7-8665U | 32GB RAM | Intel UHD Graphics 620

Overview

This is a complete installation guide to install macOS Big Sur 11.2.3 on Dell Latitude 7400. The purpose of this guide is to provide a step-by-step guide to install Big Sur using OpenCore UEFI.

Specifications

Component	Model Number
Tablet	Lenovo Ideapad S540-15IWL
Processor	Intel Core i5-8265U
RAM	8GB 1866MHz
Graphics	Intel UHD Graphics 620
SSD	Samsung 512GB NVMe SSD
Audio	Realtek ALC257
Display	15.6” FHD (1920x1080) IPS, antiglare, 300 nits, 72% NTSC
Wireless/Bluetooth	Replaced with Broadcom BCM94352Z, NGFF, M.2, A+E Key Type
WebCam	SunplusIT Integrated Camera
Fingerprint	GoodixFingerPrint
Ports	1 x DC Power Input \| 1 x HDMI \| 2 x USB 3.0 \| 1 x USB Type-C Gen2 \| 1 x 3.5mm audio combo jack \| 1 x SD Card slot

Summary

Features	Status
Graphics	YES
Built-in Audio	YES
Brightness	YES
Brightness HotKeys	YES
Fingerprint	NOT SUPPORTED
WebCam	YES
Battery meter	YES
Card Reader	YES
Ethernet	YES
WiFi/BT	YES
AirDrop	YES
Handoff	YES
Apple Watch Unlock	YES
Power Management	YES
App Store	YES
iMessage	YES
FaceTime	YES
iCloud	YES
USB 2.0, and USB 3.0 Ports and Type-C	YES

Not working

Fingerprint is unsupported and it doesn't works.
There is a known issue with Samsung PM981 series NVMe. The SSD was replaced with Samsung 970 EVO Plus.

Bootable Media Creation

To create Bootable USB for macOS Big Sur, follow the steps below.

1. Download macOS Big Sur from App Store.
2. Plug USB to your system.
3. Open Disk Utility and erase the USB Flash Drive with following parameters
4. Close Disk Utility.
5. Open Terminal and type:
Code:
sudo /Applications/Install\ macOS\ Big\ Sur.app/Contents/Resources/createinstallmedia --volume /Volumes/USB
6. Enter your password
7. Press (Y) to confirm and then press enter key and it will start to erase the disk and will create macOS Bootable USB.

Once the process completes, close the terminal. The USB Flash Drive will be renamed as Install macOS Big Sur

Note :

At this point, the bootable USB can be only used to boot Mac only. In order to boot the computer using the USB, follow the steps below.

Preparing OpenCore Bootloader

To prepare OpenCore boot loader, you need to download OpenCore.
Download the Release folder followed by the release version.
When extracting, you'll get 4 folders which has been listed below.

Directories	Description
Docs	Contains documentation, change log, a sample config.plist, and ACPI Samples for OpenCore.
IA32	Contains OpenCore EFI, 32-bit OpenCore Boot Loader.
Utilities	Contains several utilities.
X64	Contains OpenCore EFI, 64-bit OpenCore Boot Loader.

1. Copy X64 to your working directory and follow the steps below

Adding Required SSDTs
SSDTs are mandatory which allows several important fixes and is required to boot the system.

SSDT Name	Notes
SSDT-EC-USBX	This SSDT fixes EC and USB Power. *This SSDT is required for proper USB Power.*
SSDT-AWAC	This SSDT serves 300 series RTC patch. *This SSDT can also fix stuck at afps_module_start error while booting the installer.*
SSDT-PLUG	This SSDT enables Power Management function. *This SSDT is required for a proper CPU and GPU Power Management.*
SSDT-PNLFCFL	This SSD enables PNLF attaching to display. This SSDT is required for Brightness function.

2. From the Docs/Acpi Samples/Binaries directory, copy the above SSDTs to EFI/OC/ACPI.

Adding Required Drivers
Drivers are mandatory which allows several important function and is required to boot the system.

Driver Name	Required	Notes
OpenRuntime.efi	YES	Runtime driver including several other drivers merged such as ApfsDriverLoader. OpenRuntime.efi is a replacement for AptioMemoryFix.efi driver.
OpenHfsPlus.efi	YES	Provides reading of HFS+ Volumes/drives in OpenCore Boot Picker.
OpenCanopy.efi	Optional	Provides GUI functionality for OpenCore Boot screen. This driver is required if you need GUI or theme for OpenCore.
AudioDxe.efi	Optional	Provides Boot Chime support. Only required if you want to use Boot Chime

3. From the EFI/OC directory, just keep the above drivers and delete rest of the drivers.

Notes :

All the drivers can be found at: X64/EFI/OC/Drivers

Adding Required Kexts
In order to boot into the installation, you need to add the necessary kexts. Follow the steps below to place the necessary kexts.

Kext Name	Required	Notes
Lilu	YES	Provides arbitrary patching.
VirtualSMC	YES	Emulates Apple hardware. VirtualSMC is a successor of FakeSMC. *This kext requires "Lilu.kext" to function.*
WhateverGreen	YES	Provides GPU patching on macOS. *This kext requires "Lilu.kext" to function.*
AppleALC	YES	Provides Audio support on macOS. This kext requires "Lilu.kext" to function.
SMCBatteryManager.kext	YES	Enables Battery Meter on macOS
AirportBrcmFixup.kext	YES	Enables Broadcom WiFi on macOS
BrcmBluetoothInjector.kext	YES	Enables Broadcom Bluetooth on macOS
BrcmFirmwareData.kext	YES	Broadcom Firmware Injector for macOS
BrcmPatchRAM3.kext	YES	Enables PatchRAM updates on macOS *This kext requires "BrcmBluetoothInjector.kext" to function.*
USBInjectAll	YES	Enables USB ports for mapping USB ports further. It's advised to map the USB ports during the post-install for a better USB speed, improved sleep/wake and hotplug.
Sinetek-rtsx.kext	YES	Enables Realtek SD Card Reader
VoodooI2C.kext	YES	Enables I2C Controller Support
VoodooI2CHID.kext	YES	Enables I2C Touchpad support on macOS
VoodooPS2Controller.kext	YES	Enables PS2K Keyboard support on macOS.

1. Download the above kexts.
2. Extract the kexts from the RELEASE folder.
3. Copy the kexts to: /EFI/OC/Kexts

Notes:

Do not download the project files. The pre-built binaries/downloads are available in the README.md section. Make sure you read it carefully.
Download the latest version for better support.
Use the kext from RELEASE folder and RELEASE.zip file.
Do not place unnecessary kexts here. It might prevent booting the installer.
Only use basic kexts which is required to boot off the installer. You can install the rest required kexts at the time of post-installation.
The VirtualSMC package includes Battery and Sensors plugins (SMCBatteryManager.kext, SMCDellSensors.kext, SMCLightSensor.kext, SMCProcessor.kext, and SMCSuperIO.kext). You do not need these kexts for booting the installer.

Creating OpenCore config.plist
To create config.plist, follow the steps below.
Copy sample.plist from Docs to your working directory and rename it to config.plist. The only changes to the config.plist has been described below. The rest will remain completely untouched.

ACPI>Add

This section is for adding the DSDT and SSDT files for your system. The following changes are needed.

SSDT Name	Notes
SSDT-EC-USBX	This SSDT fixes EC and USB Power. *This SSDT is required for proper USB Power.*
SSDT-AWAC	This SSDT serves 300 series RTC patch. *This SSDT can also fix stuck at afps_module_start error while booting the installer.*
SSDT-PLUG	This SSDT enables Power Management function. *This SSDT is required for a proper CPU and GPU Power Management.*
SSDT-PNLFCFL	This SSD enables PNLF attaching to display. This SSDT is required for Brightness function.

ACPI>Patch

This section is used for device renames such as USB, Graphics and Audio. The following changes are needed.

Table Signature*	Find	Replace	Comment	Enabled	Notes
DSDT	47465830	49475055	Rename GFX0 to IGPU (Graphics)	NO	Renames GFX0 to IGPU for a better power management. This rename is required for implementing IGPU Power Management.
DSDT	48454349	494D4549	Rename HECI to IMEI (PAVP)*	YES	Renames HECI to IMEI for PAVP services. This rename is required for implementing PAVP services. This rename fixes iTunes/App Store Content Access problems and also enables Content playback.
DSDT	4D45495F	494D4549	Rename MEI to IMEI (PAVP)*	YES	Renames MEI to IMEI for PAVP services. This rename is required for implementing PAVP services. This rename fixes iTunes/App Store Content Access problems and also enables Content playback.
DSDT	48444153	48444546	Rename HDAS to HDEF (Audio)	YES	Renames HDAS to HDEF for Audio. This rename is required for implementing Audio Function.

Booter>Quirks
Notes:

*Requires both renames for full function.
GFX0 to IGPU rename must be enabled after ACPI patching.

Booter>Quirks

This section allows to apply certain Booter quirks. The following changes are needed.

Quirks	Value	Notes
AvoidRunTimeDefrag	YES	Fixes certain UEFI runtime services such as date time, NVRAM, power control, etc.
EnableSafeModeSlide	YES	Patch bootloader to have KASLR enabled in safe mode. This quirk requires ProvideCustomSlide to be enabled.
EnableWriteUnprotector	YES	Allows write access to UEFI runtime services code.
ProvideCustomSlide	YES	Provide custom KASLR slide on low memory. This option forces macOS to use a pseudo random value among the available ones.
SetupVirtualMap	YES	Setup virtual memory at SetVirtualAddresses. Fixes several virtual address issues and tends to fix early Kernel Panics.
SyncRuntimePermissions	YES	Update memory permissions for runtime environment. *The need for this quirk is indicated by early boot failures. Only firmware released after 2017 is typically affected.*

Note:

The values which have been not discussed above, that will remain disabled.

DeviceProperties

This section is used for adding device properties. This includes PCI Devices information such as Graphics, Audio, WiFi, Ethernet and other controllers. The following changes are needed.

Devices	Key	Value	Type	Notes
PciRoot(0x0)/Pci(0x2,0x0)	AAPL,ig-platform-id	0900A53E	DATA	Enables IGPU Graphics acceleration and support.
	device-id	A53E0000	DATA	Sets Device ID for Whiskey Lake CPUs
	framebuffer-con1-busid	01000000	DATA
	framebuffer-con1-enable	01000000	DATA	Enables framebuffer connector 1.
	framebuffer-con1-type	00080000	DATA	Sets framebuffer connector 1 type as HDMI
	framebuffer-con2-enable	01000000	DATA
	framebuffer-con2-index	FFFFFFFF	DATA
	framebuffer-con1-enable	1	NUMBER	Enables framebuffer connector 1.
	framebuffer-fbmem	00009000	DATA	Specifies framebuffer memory size. This is a memory which is reserved for the framebuffer. Sets framebuffer memory size to 9MB
	framebuffer-patch1-enable	1	NUMBER	Enables framebuffer patching.
	framebuffer-stolenmem	00003001	DATA	Specifies stolenmem. This is a memory which is reserved for the IGPU. Prevents kernel panic due to less DVMT size set in BIOS/UEFI. Sets framebuffer stolenmem size to 19MB
	hda-gfx	onboard-1	STRING	Sets hda-gfx to onboard-1 on IGPU. This property provides HDMI/DP function and can also fix crash issue when Hot plugging.
PciRoot(0)/Pci(0x1f,3)	hda-gfx	onboard-1	STRING	Sets hda-gfx to onboard-1 on HDEF. This property provides HDMI/DP function and can also fix crash issue when Hot plugging.
	layout-id	30	NUMBER	Sets Layout ID for your Audio Codec.
	no-controller-patch	1	NUMBER

Kernel>Add

This section is for adding and blocking kexts. This also defines the order of the kexts and the architecture of each kext. The following changes are needed.

Arch	BundlePath*	ExecutablePath	PlistPath	Enabled	Notes
Any	Lilu.kext**	Contents/MacOS/Lilu	Contents/Info.plist	YES	Provides arbitrary patching.
Any	VirtualSMC.kext**	Contents/MacOS/VirtualSMC	Contents/Info.plist	YES	Emulates Apple hardware. VirtualSMC is a successor of FakeSMC. *This kext requires Lilu.kext to function.*
Any	WhateverGreen.kext**	Contents/MacOS/WhateverGreen	Contents/Info.plist	YES	Provides GPU patching on macOS. *This kext requires Lilu.kext to function.*
Any	AppleALC.kext**	Contents/MacOS/AppleALC	Contents/Info.plist	YES	Enables onboard/built-in Audio. *This kext requires Lilu.kext to function.*
Any	AppleBacklightFixup.kext**	Contents/MacOS/AppleBacklightFixup	Contents/Info.plist	NO	Enables Backlight Slider in System Preferences>Displays
Any	SMCBatteryManager.kext	Contents/MacOS/SMCBatteryManager	Contents/Info.plist	NO
Any	AirportBrcmFixup.kext	Contents/MacOS/AirportBrcmFixup	Contents/Info.plist	YES
Any	AirportBrcmFixup.kext/Contents/PlugIns/AirPortBrcmNIC_Injector.kext		Contents/Info.plist	YES
Any	BrcmBluetoothInjector.kext		Contents/Info.plist	YES
Any	BrcmFirmwareData.kext	Contents/MacOS/BrcmFirmwareData	Contents/Info.plist	YES
Any	BrcmPatchRAM3.kext	Contents/MacOS/BrcmPatchRAM3	Contents/Info.plist	YES
Any	USBInjectAll.kext**	Contents/MacOS/USBInjectAll	Contents/Info.plist	YES	Enables USB ports. *It's advised to map the USB ports during the post-install for a better USB speed, improved and sleep/wake.*
Any	Sinetek-rtsx.kext**	Contents/MacOS/Sinetek-rtsx	Contents/Info.plist	NO	Enables Realtek RTL 8111/8168 Family onboard Ethernet Controller.
Any	VoodooI2C.kext/Contents/PlugIns/VoodooGPIO.kext	Contents/MacOS/VoodooGPIO	Contents/Info.plist	NO
Any	VoodooI2C.kext/Contents/PlugIns/VoodooI2CServices.kext	Contents/MacOS/VoodooI2CServices	Contents/Info.plist	NO
Any	VoodooI2C.kext	Contents/MacOS/VoodooI2C	Contents/Info.plist	NO
Any	VoodooI2C.kext/Contents/PlugIns/VoodooInput.kext	Contents/MacOS/VoodooInput	Contents/Info.plist	NO
Any	VoodooI2CHID.kext	Contents/MacOS/VoodooI2CHID	Contents/Info.plist	NO
Any	VoodooPS2Controller.kext	Contents/MacOS/VoodooPS2Controller	Contents/Info.plist	YES
Any	VoodooPS2Controller.kext/Contents/PlugIns/VoodooInput.kext	Contents/MacOS/VoodooInput	Contents/Info.plist	YES	Delete this entry after postinstallation.
Any	VoodooPS2Controller.kext/Contents/PlugIns/VoodooPS2Keyboard.kext	Contents/MacOS/VoodooPS2Keyboard	Contents/Info.plist	YES
Any	VoodooPS2Controller.kext/Contents/PlugIns/VoodooPS2Mouse.kext	Contents/MacOS/VoodooPS2Mouse	Contents/Info.plist	YES
Any	VoodooPS2Controller.kext/Contents/PlugIns/VoodooPS2Trackpad.kext	Contents/MacOS/VoodooPS2Trackpad	Contents/Info.plist	YES

Notes:

All the plugins must load after loading it's dependencies otherwise the kext will no longer function even when loaded in OS X/macOS.
The mandatory kexts must be loaded in sorted order as shown in the above table.
*Indicates BundlePath i.e. Name of the Kext
**Indicates mandatory kexts.
All the added kexts must exists in the EFI/OC/Kexts directory.
The options which have been not discussed above, that will remain untouched.

Kernel>Scheme
This section allows settings related to Kernel. The following changes are needed.

Options	Value	Notes
FuzzyMatch	YES	Enables checksum ignore with kernel cache instead of using latest cache available. This setting allows matching the latest kernel cache with a suitable architecture when the kernel cache without suffix is unavailable, improving macOS 10.6 boot performance on several platforms.
KernelArch	Auto	Determines Kernel Architecture.
KernelCache	Auto	Determines Kernel Cache.

Kernel>Quirks
This section allows to apply certain Kernel quirks. It provides settings related to Kernel and several other options related to BIOS/UEFI and USB ports. The following changes are needed.

Quirks	Value	Notes
AppleCpuPmCfgLock	YES	Disables PKG_CST_CONFIG_CONTROL (0xE2) MSR modification in AppleIntelCPUPowerManage- ment.kext, commonly causing early kernel panic, when it is locked from writing. Enable this quirk if you cannot disable CFG-Lock in BIOS/UEFI.
AppleXcpmCfgLock	YES	Disables PKG_CST_CONFIG_CONTROL (0xE2) MSR modification in XNU kernel, commonly causing early kernel panic, when it is locked from writing (XCPM power management). Enable this quirk if you cannot disable CFG-Lock in BIOS/UEFI.
CustomBIOSGuid	YES	Performs GUID patching for UpdateSMBIOSMode Custom mode. *This quirk is required for Dell Laptops.*
DisableIoMapper	YES	Disables IOMapper support in XNU (VT-d), which may conflict with the firmware implementation. *This option is a preferred alternative to deleting DMAR ACPI table and disabling VT-d in firmware preferences, which does not break VT-d support in other systems in case they need it.* Enable this quirk if you cannot disable VT-d in BIOS/UEFI.
PanicKNoextDump	YES	Prevent kernel from printing kext dump in the panic log preventing from observing panic details.
PowerTimeoutKernelPanic	YES	Disables kernel panic on setPowerState timeout. *Fixes kernel panics related to power changes with Apple drivers in macOS Catalina, most notably with digital audio.*
XhciPortLimit	YES	Enables 15 port limit patch. *This quirk is a temporary solution and is advised to map your USB ports during post-installation.*
DisableLinkeditJettison	YES	Disables __LINKEDIT jettison code. Provides more reliable performance without keepsyms=1 *This quirk is required for macOS Big Sur.*

Note:

The values which have been not discussed above, that will remain disabled.

NVRAM>Add

This section is for adding NVRAM properties, boot args and configuring SIP. The following changes are needed.

UUID

Key

Value

Type

Notes

7C436110-AB2A-4BBB-A880-FE41995C9F82

boot-args

-v
dart=0
-cdfon
-igfxnohdmi
debug=0x100
keepsyms=1
alcid=11

STRING

Adds boot args which provides several functions.

-v

Enables verbose mode. Helpful to track the installation progress or when booting.

debug=0x100

This disables macOS's watchdog which helps prevents a reboot on a kernel panic.

keepsyms=1

This is a companion setting to debug=0x100 that tells the OS to also print the symbols on a kernel panic.
This can give some more helpful insight as to what's causing the panic itself.

alcid=11

Sets Layout ID = 20 for Onboard/Built-In Audio.

csr-active-config

00000000

DATA

Defines SIP type.

00000000

Enables SIP completely. (0x0)
It's advised to configure SIP via recovery using "csrutil."
For more information on SIP, check the SIP disabling guide.

prev-lang:kbd

en-US:0

STRING

Sets Keyboard language.

PlatformInfo

This section allows to set SMBIOS. It's an important section and has various impact on your system. The following changes are needed.

Suggested SMBIOS

SMBIOS	CPU
MacBook Pro14,1	Intel Skylake for i3, i5 and i7

Using OpenCore Configurator, generate a SMBIOS under PlatformInfo section and configure the options as outlined below.

Platform Info>DatHub - Generic - PlatformNVRAM

DataHub

Option	Value	Notes
Add this section in config.plist	YES	Adds DataHub field

Generic

Options	Value	Notes
Add this section in config.plist	YES	Adds Generic field
from SMBIOS	YES
ProcessorType	0	Sets SMBIOS Processor Type. This will override your actual CPU type. *It's recommended to set this option to "0" to detect the original CPU by macOS instead of using SMBIOS CPU Type.*
SystemMemoryStatus	Auto	Indicates whether system memory is upgradable in PlatformFeature. This controls the visibility of the Memory tab in About This Mac. Auto Use the original PlatformFeature value. *It's recommended to set this option to "Auto."* Upgradable Explicitly unset PT_FEATURE_HAS_SOLDERED_SYSTEM_MEMORY (0x2) in PlatformFeature. Soldered explicitly set PT_FEATURE_HAS_SOLDERED_SYSTEM_MEMORY (0x2) in PlatformFeature.
SpoofVendor	YES	Sets SMBIOS vendor fields to Acidanthera

PlatformNVRAM

Option	Value	Note
Add this section in config.plist	YES	Adds PlatformNVRAM field

SMBIOS

Option	Value	Note
Add this section in config.plist	YES	Add SMBIOS field.

UEFI

This section is for adding UEFI drivers and related settings. This section will remain completely untouched

Note:
The values which have been not discussed above, that will remain as default values.

Installing OpenCore EFI

Now, as the EFI is completely prepared, it's time for the installation of OpenCore on the Bootable USB Flash Drive.

1. Mount the EFI partition of your Bootable USB Flash Drive.
2. Copy the EFI from your working directory to EFI partition of your Bootable USB Flash Drive.

Now you’ve successfully installed OpenCore, the required drivers, kexts and config.plist and the USB Flash drive is ready to boot off your computer.

UEFI Settings

The next step is to configure the BIOS. To access your BIOS/UEFI, press and hold Delete key on your Keyboard and then set the following.

Settings	Value
SATA Emulation	AHCI
Network Boot	Disabled
Virtualization Technology	Enabled
Legacy Support	Enabled
Secure Boot	Disabled
Fast Boot	Disabled

Once the UEFI is setup, Save & Exit Setup

Installation

The installation step is simple.
Plug your Bootable USB Flash Drive to the target system.
Turn on your system.
3. Boot to Boot Menu using F12
4. Select your USB Flash Drive with the UEFI prefix and press enter to boot.
5. When at OpenCore menu, select ResetNVRAM and boot from it.
6. Repeat step no. 5.
7. When at OpenCore menu, boot using Install macOS Big Sur. It will take couple of minutes to boot into installer screen. Once you reach the installer, select your preferred language and continue.
8. On top, click on Utilities and then select Disk Utility.
9. When at Disk Utility, click on View and select Show all Devices.
10. Select your target SSD. Do not select the partition
11. Click on Erase button and erase the drive with following parameters.

Name	Macintosh HD
Format	APFS
Scheme	GUID Partition Map

12. Close Disk Utility.
13. Select Install macOS and continue with the options.
14. Select Macintosh HD and click on Install.

This will take couple of minutes and will restart at "Less than a minute is remaining". Upon completion, the system will automatically restart. The System will restart to complete the installation. Here it ends the first phase of the installation.

After installation, boot it using USB, but this time select Macintosh HD.
The first boot maybe slower as the caches are not build yet. Once the caches are built, it will boot normally.
When you're at the welcome screen, continue with the basics options such as Keyboard setup, Network, Computer Account and Privacy settings.

Now the installation is complete, but the drive isn't bootable yet. You need to complete the Post Installation

Post Installation

Now, configuring the Post Installation. There is not much to do for the postinstallation except configuring WiFi/BT and the boot from system drive. Everything rest is fully functional.

DSDT and SSDT Patching
For the DSDT and SSDT patching, i prefer full patched set of DSDT and SSDT. For more information on DSDT and SSDT patching, checkout the guide linked below
https://www.elitemacx86.com/threads/guide-how-to-patch-laptop-dsdt-and-ssdts.178/
Using the guides, patch all of your DSDT and SSDT.

DSDT

Layout id = 11 (0x11)
Lenovo Ideapad-100
Rename GFX0 to IGPU
Fix _WAK Arg0 v2
HPET Fix
SMBUS Fix
IRQ Fix
RTC Fix
OS Check Fix (Windows 10)
Fix Mutex with non-zero SyncLevel
USB3_PRW 0x6D Skylake (instant wake)
GPIO Controller Enable [SKL+]

To disable the GPU, use the following patch

Code:

into method label _REG parent_hid PNP0C09 insert
begin
//added to turn nvidia/radeon off\n
If (LAnd(LEqual(Arg0,3),LEqual(Arg1,1)))\n
{\n
    External(\_SB.PCI0.RP05.PXSX._OFF, MethodObj)\n
    \_SB.PCI0.RP05.PXSX._OFF()\n
}\n
end;

SSDT

Rename GFX0 to IGPU
Cleanup/Fix Errors (SSDT)
Remove _PSS placeholders

The SSDT (SSDT-x0_0-Cpu0Ist) will have 2 errors in total

View attachment 3357
Find the following lines and delete them.

Code:

External (_SB_.PR00._PPC, IntObj)
External (_SB_.PR00._PSS, BuffObj)
External (_SB_.PR01._PPC, IntObj)

Patch for Disabling GPU in SSDT-9-CB-01

Code:

into method label _INI parent_label \_SB.PCI0.RP05.PXSX insert
begin
//added to turn nvidia/radeon off\n
External(\_SB.PCI0.RP05.PXSX._OFF, MethodObj)\n
_OFF()\n
end;

Place all the patches DSDT and SSDTs to EFI/OC/ACPI

1. Open your config.plist
2. Add all the DSDT and SSDTs.

Note:

The DSDT and all the OEM SSDTs must be added in a sorted order.
The SSDT (SSDT-PNLFCFL.aml) should be added at last.

Brightness and Trackpad
The kexts for the Brightness and Trackpad already exists in the required directory and the ACPI has been patched accordingly. You just need to enable the disabled patch and kexts in your config.plist.

Boot from System Drive
This is one of the most important part as it allows to boot it using the system drive without any need of installation USB.

1. Mount the EFI Partition of your System drive and the Bootable USB. Both the EFI partition of your Hard Drive and USB Flash Drive will be mounted on your Desktop.
2. Assuming that you’ve mounted your EFI Partition, continue the following.
3. Open your EFI Partition of your Hard Drive.
4. Select EFI folder and then move to Trash.
5. Open your EFI Partition of your macOS Bootable USB.
6. Copy the EFI folder from your macOS Bootable USB to your EFI Partition of your Hard Drive.

By using this method, you’ll be easily able to install OpenCore Boot loader on your System Drive.

Restart your Laptop
After completing the post installation, restart your laptop.

Miscellaneous

App Store, iMessage, FaceTime, and iCloud
1. Mount your EFI partition
2. Open your config.plist
3. Navigate to Platform Info Tab
4. Generate a new SMBIOS for "MacBook Pro14,1"
5. Save your config.plist
6. Restart your Tablet
7. Login into App Store, iMessage, FaceTime and iCloud.

Conclusion
You should have all the functions as stated above.

Credits:
RehabMan

Hadi123555 · Jun 15, 2021

Hi!
Thanks a lot for your Guide, your work and your time!
I own a new Dell Latitude 7400-5WRVH 2 in 1 (switched the SSD from 512 to Samsung EVO 1TB) Notebook and am trying to install Big Sur with OC and am following your guide.
Somehow i get stuck before Installationscreen.
My CPU is running high (at least the fan:=))
I've allready built a Hacintosh on CLOVER but it's a desktop.
Can you help me somehow plz!
I Attach my EFI folder.
Probably I'm doing some small mistake?!
Best greetings from Austria

EliteMacx86 · Jun 15, 2021

Hadi123555 said:
Hi!
Thanks a lot for your Guide, your work and your time!
I own a new Dell Latitude 7400-5WRVH 2 in 1 (switched the SSD from 512 to Samsung EVO 1TB) Notebook and am trying to install Big Sur with OC and am following your guide.
Somehow i get stuck before Installationscreen.
My CPU is running high (at least the fan:=))
I've allready built a Hacintosh on CLOVER but it's a desktop.
Can you help me somehow plz!
I Attach my EFI folder.
Probably I'm doing some small mistake?!
Best greetings from Austria

Your configuration is not as per the guide.

Hadi123555 · Jun 15, 2021

EliteMacx86 said:
Your configuration is not as per the guide.

Thank's for your reply!
I found a few mistakes and changed them.
I'm still stuck at the same point Stuck on or near IOConsoleUsers: gIOScreenLock as mentioned here.

Any hints? plz help

EliteMacx86 · Jun 16, 2021

Hadi123555 said:
Thank's for your reply!
I found a few mistakes and changed them.
I'm still stuck at the same point Stuck on or near IOConsoleUsers: gIOScreenLock as mentioned here.

Any hints? plz help

Fix your profile first. What's the screen resolution and refresh rate?

Hadi123555 · Jul 29, 2021

@EliteMacx86

Could you please just send me a EFI folder for the Latitude 7400 2 in 1
I'm still strugeling...

I really do not see myself out with this millions of simular models platform ids and device ids.

1.)
As I have got a Whiskeylake CPU and it seems that I should use A53E0000 as device id as mentioned on WEG github site.

2.)
Augustowski say use this:
AAPL, ig-platform-id == 00009B3E
device-id == 9B3E0000

3.)
And here in the mentioned topic th solution is:

So I really don't know where to properly continue....
Sorry again, just trying to get things done, cause I'm probably rebooting my Laptop for the 500th time or so, since I bought it, just to get the acceleration to work.

Could you please just send me a EFI folder for the Latitude 7400 2 in 1

EliteMacx86 · Jul 29, 2021

Hadi123555 said:
Could you please just send me a EFI folder for the Latitude 7400 2 in 1

NO.

Hadi123555 said:
I'm still strugeling...

You should consider reading guides and create it yourself!

Hadi123555 said:
@EliteMacx86

Could you please just send me a EFI folder for the Latitude 7400 2 in 1
I'm still strugeling...

I really do not see myself out with this millions of simular models platform ids and device ids.

1.)
As I have got a Whiskeylake CPU and it seems that I should use A53E0000 as device id as mentioned on WEG github site.

2.)
Augustowski say use this:
AAPL, ig-platform-id == 00009B3E
device-id == 9B3E0000

3.)
And here in the mentioned topic th solution is:

So I really don't know where to properly continue....
Sorry again, just trying to get things done, cause I'm probably rebooting my Laptop for the 500th time or so, since I bought it, just to get the acceleration to work.

Could you please just send me a EFI folder for the Latitude 7400 2 in 1

You can use both. The second ig-platform-id and device-id you mentioned, is more compatible for CFL Laptops but can be also used for WHL Laptops. However, the first one is more appropriate for WHL Laptops.

Unfortunately, you didn't provide the complete information and PR files which is necessary for debugging the issue.

dman · Nov 1, 2021

Thankyou for the Guide.

In the DeviceProperties section, the key 'framebuffer-con1-enable' appears twice – is that an error? ProperTree won't allow adding the same key value.

I'm trying this on Dell 7580 which has Intel Core i7-8665U and Intel UHD Graphics 620.

EliteMacx86 · Nov 1, 2021

dman said:
Thankyou for the Guide.

In the DeviceProperties section, the key 'framebuffer-con1-enable' appears twice – is that an error? ProperTree won't allow adding the same key value.

Thanks for pointing it out. Probably, a typo.

dman said:
I'm trying this on Dell 7580 which has Intel Core i7-8665U and Intel UHD Graphics 620.

Sounds good!

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Dell Latitude 7400 | Intel Core i7-8665U | 32GB RAM | Intel UHD Graphics 620

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