(UEFI) Dell XPS 15z L511z modded BIOS - and HOWTO

[TimeWalker]

I patched the L702X_A18_UNLCK.WPH with DELL SLIC 2.1 but it still don't work.

my original BIOS is L702x A17, then I updated my BIOS to stock A18, still no luck.

I flash the WPH file in DOS with the command: phlash16 /S /X /FORCE, which following this thread: http://www.bios-mods.com/forum/Thread-HO...GINAL-BIOS

then I decompressed the stock BIOS.WPH, which I just flashed using official program.
and copy it to my USB disk, the error still the same.
so, i think this error should be nothing to do with the SLIC.

I haven't touched a bit in regards to SLIC in the original A18 BIOS I had patched for L702x. You are just increasing your chances for a brick. There's a guide in the first post of this thread you need to follow and not some oblivious random stuff related to older Phoenix bioses (non-EFI)

Here is the decompression of the A18 you have been provided:

Code:

EFI / Insyde BIOS
Finished Extracting
Tiano module compression method used
Pubkey and Marker found in F33E367F-41D2-4201-9CB7-AFA63DCCEEC9_0_5.ROM at 36135C
Pubkey and Marker found in F33E367F-41D2-4201-9CB7-AFA63DCCEEC9_0_5.ROM at 3614AE
OEM/Table IDs identified are:
1. DELL  QA09    
Pubkey and marker (2.1) (DELL  QA09    ) (x2)

You see the last line? It mean SLIC was found in the rom.

Why would you be flashing your BIOS in DOS when this laptop uses EFI capsule to flash ? The error is actually because you are using WRONG tools to flash!

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So far I have tried these for recovery:
BIOS1.WPH as BIOS.cap -> no result
FvRecovery.fd as BIOS.cap -> no result

With FvRecovery.fd the flashdrive blinked longer than with just the capsule, also it scanned the DVD drive a couple of time and blinked the HDD for 5 times in a row and then stopped. So the entire capsule is definitely not a proper recovery image. I'm now leaning towards the image that contains PEI and DXE stuff right away (like the first part of the fw extracted /w Phoenix Tool) ...

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Just tried the F33....ROM as well - no luck. Will have to look up Phoenix spec of some sort to determine what's needed for recovery. I guess this won't be easy ...
Well, we kind of know what's needed there (from the Packard Bell service guide) .. but since PFlash.efi (which is an Application, not a DXE or PEI) is nowhere to be found .. we pretty much have to figure this on our own.