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

[Fawar]

Hey guys, have you achieve some secured way to flash the l511z?

[kasar]

@fawar

modded bios yes.

bios recovery is also working, so it is safe to flash bios.

anyway other parts of the firmware like Intel ME, or descriptor can just be modded by hardware based programers

[anscorp]

Hello all.

I need some help.
My notebook is not a DELL, but a Brazilian manufacturer called CCE (hm61 and i5-2410M).
He has a BIOS / UEFI Phoenix Tiano Securecore with menus blocked.
Need to enable UEFI boot to get my osx start correctly (actually also need to enable sleeping).
Extracts my bios with Phoenix Mod and found CFEF94C4-4167-466A-8893-8779459DFA86_1_941.ROM referring to platform_setup_advanced_dxe.efi. With the Hex Editor I found some occurrences of 0A 82 45 8A and 0A 82 45 0A, but already followed all of 01, ie, with the menus activated. (!?)
But the options do not appear. Very upset, I risking something that could eventually damage my motherboard. I dump CFEF94C4-4167-466A-8893-8779459DFA86 modded the rom posted here, I inserted in my bios, and flash my notebook.

The notebook boot ok. But upon entering the setup, I get warnings:
1º
Formset 78D3BC87-78A3-4996-B813-1844050889F7
FAILED TO LOAD STORAGE: SETUP. STATUS: 0x7.
OK

2º
Formset 78D3BC87-78A3-4996-B813-1844050889F7
Failed to load storage: DellVariable. Status: 0xE
OK

3º
Formset 78D3BC87-78A3-4996-B813-1844050889F7
Failed to load storage: SSDExist. Status: 0xE

4º
Formset 78D3BC87-78A3-4996-B813-1844050889F7
Failed to load storage: SioPolicy. Status: 0xE.

After that enter the bios normally, but when entering the Advanced tab, it takes a while but it opens with all options unlocked. But changing some option when I save the changes, I get the first warning again. But back to the setup option has not been modified.

Help me. I really want to have the UEFI boot enabled.

Follow my attached file if help:
  CFEF94C4-4167-466A-8893-8779459DFA86_1_941.ROM (Size: 256.81 KB / Downloads: 3)

TKS
(Sorry, but the text was translated and may contain errors.)

[kurt]

Hi.
Does anyone of you know if it´s possible to boot an GUID partition with the latest modded bios, and if any settings under advances settings needs tweaking.

Kurt

[mizyshamirul]

can anyone help me?? i just dont understand how the to bios mod it..btw. what does this mean ??

2) Under Windows, download latest BIOS update from DELL. Run it, and copy the BIOS1.WPH file from your temp folder just before you press "Cancel" to flash your BIOS

[kasar]

@anscorp

so, as far I understood, you sucesfully unlocked the menus on your bios right?

its just that the modded bios got some issues loading some modules.

I would say those 0xE status are some kind of error code relating incorrect checksums or somewhere.

I would try to repeat the procedure and check if you are missing something, srry if I cant be more helpfull :/

@kurt

jkbuha would probably aswer that better

@mizyshamirul

well, not sure why jkbuha didnt included the flasher in the package, maybe he wanted to make the package light in size.

well, to flash the bios you will need

the flasher

http://www.mediafire.com/?a9jz4j5av0npbma

then put the modded BIOS1.WPH file and flash it with the flasher

then you will doesnt need to download the original latest dell update and locate the temp folder.

just download the flasher I added and flash the modded wph file

[mizyshamirul]

@kasar

so i just download the flasher and put the modded bios1 and it will be complete??so i dont need to follow the tutorial given here??
sorry.. im new to this kind of things...are there any video tutorial i can watch?

[jkbuha]

@kurt - Not easy mate. I cannot boot GPT partitions by default on my machine. You need to enable UEFI bios, and try a bootloader such as CloverEFI on a USB stick (formatted in GPT not MBR) first to see if it works.

---

@all - to those who have donated to kasar's cause, the money I had donated has just come back to my account. I have enquired with paypal about this and apparently the country holding my bank account (Malta) did not allow money to be received with paypal, only sent out. Consequently all of you who have donated will be receiving your money back in the coming 24 hours. Sorry about this - stupid money laundering laws!

@kasar - could you give me your paypal address (send it to me by private email if you want) so I'll recreate the campaign with your paypal address now?

@all - when all of you receive your monies back (and only when you do), could you please re-donate to this worthwhile cause!

Thanks
jkbuha

[kurt]

@all - when all of you receive your monies back (and only when you do), could you please re-donate to this worthwhile cause!

Thanks
jkbuha
[/quote]

OK, let us know when the new account is ready so we can re donate the money.

[jkbuha]

Thanks kurt.

Once I get kasar's PayPal details I'll inform you all.