![grabbee black screen grabbee black screen](https://tomasherceg.com/blog/posts/files/7555af0f-4822-444d-a417-0cc8b4b62a6b.png)
![grabbee black screen grabbee black screen](https://dhwwtar19mmjy.cloudfront.net/acethinkercom/wp-content/uploads/2019/09/obs-black-screen-feature.jpg)
The Length and checksum value is what we care about, so if our SSDT is actually 347 bytes then we want to change Length to 0x0000015B (347)(the 015B is in HEX)īest way to actually fix this is to grab a newer copy of iASL or Acidanthera's copy of MaciASL (opens new window) and remaking the SSDT * Original Table Header : * Signature "SSDT" * Length 0x0000015D ( 349 ) * Revision 0x02 * Checksum 0xCF * OEM ID "ACDT" * OEM Table ID "SsdtEC" * OEM Revision 0x00001000 ( 4096 ) * Compiler ID "INTL" * Compiler Version 0x20190509 ( 538510601 ) This is due to a value set as real when it's not supposed to be, generally being that Xcode converted HaltLevel by accident: # Receiving "Failed to parse real field of type 1" Note that the entries are case-sensitive.
#GRABBEE BLACK SCREEN DRIVERS#
Ensure your EFI/OC/Drivers matches up with your ist -> UEFI -> Drivers.This is due to an entry being in your ist, however not present in your EFI.
#GRABBEE BLACK SCREEN DRIVER#
# Stuck on OC: Driver XXX.efi at 0 cannot be found
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This is likely a spelling mistake, options in OpenCore are case-sensitive so make sure you check closely, Optional is the correct way to enter it under Misc -> Security -> Vault # Can't see macOS partitions Note: Vault and FileVault are 2 separate things, see Security and FileVault (opens new window) for more details # Stuck on OC: Invalid Vault mode Can grab a new copy of OpenCore.efi here: OpenCorePkg (opens new window) If you have already executed the mand you will need to restore the OpenCore.efi file as the 256 byte RSA-2048 signature has been shoved in. Turn off Vaulting in your ist under Misc -> Security -> Vault by setting it to: Simply remove the driver as you don't need it.
#GRABBEE BLACK SCREEN INSTALL#
You'll need to setup DuetPkg, this is covered in both the macOS and Windows install pages.See Booting OpenCore reboots to BIOS for more info.If there are no logs present even after setting up the DEBUG version of OpenCore with Target set to 67, there's likely an issue either with:.The best way to diagnose it is via OpenCore's DEBUG Build and checking the logs whether OpenCore actually loaded, and if so what is it getting stuck on. This is likely some error either on your firmware or OpenCore, specifically it's having troubles loading all the drivers and presenting the menu. OC: Failed to find SB model disable halting on critical error.Failed to open OpenCore image - Access Denied.OCABC: Incompatible OpenRuntime r4, require r10.Receiving "Failed to parse real field of type 1".Stuck on OC: Driver XXX.efi at 0 cannot be found.Stuck on OCS: No schema for DSDT, KernelAndKextPatch, RtVariable, SMBIOS, SystemParameters.Stuck on OCB: System has no boot entries.Stuck on OCB: failed to match a default boot option.Stuck on OCB: OcScanForBootEntries failure - Not Found.Getting started with ACPI (opens new window).