Dell Vostro 3400 won't boot Big Sur Installation

Hi

My Spec is:

CPU : 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz

RAM : 8GB

HD : 256GB SSD Nvme

Opencore : 7.2

Big Sur : 11.5

It's about 2 days I try to boot from usb the Big Sur installation. I use this guide:

https://dortania.github.io/OpenCore-Install-Guide/config-laptop.plist/icelake.html#starting-point

With this guide

http://ruexe.blogspot.com/2021/05/ru5280396-beta.html

I can also disable the Lock for che CFG on the bios.

I try also different model of macbook , also try this 2 method using this guide:

https://dortania.github.io/OpenCore-Install-Guide/troubleshooting/extended/kernel-issues.html

Another issue may be that macOS is conflicting with the write protection from CR0 register, to resolve this we have 2 options:

• If your firmware supports MATs(2018+ firmwares):
  • EnableWriteUnprotector -> False
  • RebuildAppleMemoryMap -> True
  • SyncRuntimePermissions -> True
• For older firmwares:
  • EnableWriteUnprotector -> True
  • RebuildAppleMemoryMap -> False
  • SyncRuntimePermissions -> False

I try different combination but the result is always the same. At the last test I try to download a EFI from other people that tell to works but I stuck on the same:

13:269 00:612 AAPL: #[EB.BST.FBS|!] Err(0xE) <- EB.RH.LRH

13:882 00:612 AAPL: #[EB.B.WFDW|!WF] Err(0xE) 0

14:495 00:613 AAPL: #[EB|LOG:DT] 2021-08-09T10:00:26

15:108 00:613 AAPL: #[EB|LOG:EXITBS:START] 2021-08-09T10:00:27