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Do you have to flash this modified firmware to the machine or how is it applied?
by metadat 4y ago
Do you have to flash this modified firmware to the machine or how is it applied?
- iforgotpassword 4y agoAs you need the boot services still loaded, you cannot do this from Linux or Windows. One way is to use a hacked up version of grub or similar that has commands to write to EFI vars.
- theamk 4y ago> Rewriting Setup-EC87D643-EBA4-4BB5-A1E5-3F3E36B20DA9 with a modified value in offset 0x39 will allow direct manipulation of the config option Looks like a simple write to UEFI vars. The option is still grayed out, but it is now in the correct state.
- pixl97 4y agoI'm pretty sure that it's saved where any other custom changes you make in the EFI screen would be. But instead of using the GUI you're just directly editing the config on NVRAM.