Comments (1)
These are the instructions to downgrade or dump Bios from an EFI shell if you ever need to
Use at your own risk!!! I only tested this downgrading from 3.02 to 2.0.1 on a Razer Blade Stealth Late 2017 RZ09-02393 and RZ09-02394.
Required items:
-
OpenCore with OpenShell.efi tool enabled in config, auxiliary, timeout and picker enabled.
-
AfuEfix64.efi inside your EFI partition
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Dumped file of the complete 2.0.1 Bios (Boot block and main Bios). Move this to the same folder as AfuEfix64.efi
To dump your curent Bios you can use:
AfuEfix64 bios.rom /o
Instructions
Boot to OpenShell.efi from OpenCore menu, find your EFI partition number location and type:
fsX: (example fs0:)
dir (check if files match)
You can try different numbers or reference the list of devices of OpenShell startup.
Move to the folder where AfuEfix64.efi is and execute:
AfuEfix64 bios2-0-1.rom /P /B /L0
This should restore the bios and boot sectors and load CMOS defaults.
Reboot and you're done.
from razer_blade_stealth_hackintosh.
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from razer_blade_stealth_hackintosh.