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[Help] [WIP] Modding a Dell l321x to bring efi support

Hello guys,

I recently picked up a Dell L321x from a e-waste recycler and powered it on. Immediately seeing that the firmware was the Phoenix Tiano securecore bios, I was pretty sure this device was EFI boot compatible. As it turns out, it is and Dell for some inexplicable reason disabled the EFi boot functionality entirely. My goal is to bring this back.

What I've found out so far:

- Dell has replaced the standard formset with a custom (limited) one with EFI functionality removed.

- Other Laptops with this No EFI boot issue (Vostro 3450, L702x) do not use these custom forms

- All customized dell bios forms write to a UEFI variable "DellVariable"

- The original formsets that dell replaced still exist but are disabled somehow. These write to two other variables "System" and "Setup"

- GUID 76016....... contains the setup options I want enabled

If someone can help me figure out how to enable the old formsets, let me know. I theorize there is something referring to a GUID of the Dell formsets, however I have not been able to find those pointers.

I attached the image if anyone wants to take a look

Image may be NSFW.
Clik here to view.
.zip
  l321x.zip (Size: 1.56 MB / Downloads: 0)

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