( UEFI ) Unlock request for Dell L702x Bios

[WesleyNL]

hi i own a dell xps 17 702 is there an bios hack/mod or not for it ?

i couldnt follow this treath verry well

[Gabe]

Currently , i haven`t find any method for unlocking UEFI bioses ......... so it can`t be modified this time .
I`m sorry for this .

I ripped, extracted, modified, rebuilt, and reflashed my L702X bios. I did so in order to overclock the 550m GPU. The core speed went from 475MHz to ~840MHz, and vRAM from 900 to ~1140MHz.

To extract the BIOS, find file 7000 in Dell's executable (5MB) or use Universal BIOS Extractor 2.0 (2.5MB).

Open the file in PhoenixTool 1.90 (PhoenixDell UEFI), which will extract the file. (If you extracted the 7000 file, you must extract the F33E367F-[censored] module again in the same program.) Check the box to allow user modification of modules (and uncheck SLIC). Press GO. Another extraction will begin.

Find the desired module in DUMP and modify it with a hex editor (for instance, search in hex for nvidia and your vbios number to locate your vbios). Offset for voltage for the GF116 550m (3D003DC5-[censored]) is 0x68CA -- setting this to 02 allowed me to use the GPU at the next available voltage step in the voltage table for my chip.

Replace the module, press OK, and a reintegrated submodule will be produced. Integrate this into the core of 7000 (replacing the existing F33E367F-[censored]) and flash with WinFlash UEFI (Dell's BIOS installer has it inside -- go grab it from temp after running the EXE or use another version floating around). Point it to the file you spat out, select BACKUP to bios1.bak in case of failure, and flash.

Viola. Not that hard to mod this BIOS so far (though I haven't done any UI or CPU stuff in it).

[AHMED HOSSAM]

Nice work but i meant no methods for unlocking options not modifying any other modules .
We can remove wifi check , mod vbios or anything but can't show menus now .
thank you

[WesleyNL]

i have gt555m 3gb optimus dell xps 17 l702x, so if someone can make one for my notebook , thx in advance

[WesleyNL]

guess that means no , since there isnt a reply for me

[WesleyNL]

im sad i thoughi found a place that have dell xps 17 702 unlocked bios files , but it seems not

[AHMED HOSSAM]

I have no expeience modifying VBIOS but i just research unlocking menus in setup utility .

[WesleyNL]

well what i wanted is an unlocked bos that shows more then only an password or bood setup, i want normal menus where i can adjust things likememory speed and cpu speed

i currently still have a12 bios on it , but mines come indeed with a gt555m and not an gt550m , also it has 2 memory slots for dual channel and not 4 witch suck

[WesleyNL]

well if you can open menus please share the bios file,

[xVipeRx]

I'm watched this thread too as i'm looking for an ulocked bios for L702X - atleast to have the memory menu with speed and timings.